The global EdTech market has witnessed a noticeable wave of real-time, live instruction. The thought that static video lessons or self-paced classes are enough seems increasingly outdated to parents, schools, and organizations. What they want are accountability, engagement, and results you can measure. Here’s exactly where companies like VIPKid have completely transformed online education – being able to prove that live, one-on-one and small-group classes can scale worldwide on a robust tech platform.
If you are building a live-class software such as VIPKid, you’re not creating a video calling app. So you’re not throwing together an intense, controlled digital classroom in which a lot of the costs are real-time performance, children’s safety, quality control, teacher-wise, and some very strict regulation requirements. Each class needs to feel as if it were private, trustworthy, and safe — even though thousands of sessions are happening in various parts of the world at any given time, in multiple time zones.
Product and Engineering Challenges: Making a live-class platform includes integrating the classroom SDK (software development kit), orchestration from the backend, an auto-validation system (auto QA), and global standards compliance. On a real eLearning platform, there’ll be no buffering if you’re failing. A single dropped call, audio delay, or compliance violation is a direct hit to trust, retention, and revenue.
Create a VIPKid-Like Live-Mentors Class from Scratch. As for creating such live classes like in VIPKid, there can be mentioned SDKs of classrooms, a system of quality assurance, and the standards accepted in your country. The goal is not just to copy VIPKid’s interface, but to dissect the architecture, decision-making, and guardrails that made it work at scale.
Understanding The Vipkid Business & Technology Model
VIPKid magic is scaling 1:1 education and maintaining its quality. In essence, the platform links licensed educators with students online and live for instant tutoring on a one-on-one basis. This model demands much more discipline when it comes to the environment in which you operate than running group webinars or recorded courses, because every session is a premium, human-led user experience.
To create a live-class platform as VIPKid has done, you’d need to build systems capable of scheduling and running, recording, and grading millions of one-on-one sessions every month. VIPKid did this by unbundling scheduling engines, classroom SDKs, teacher management tools, and post-class analytics into one workflow. Teachers aren’t simply participating in calls — they are operating (poorly) within a managed teaching environment that is basically designed with lesson plans and performance metrics baked into it.
Another critical factor is predictability. VIPKid standardized lesson structure, session length , and teacher expectations. This allowed quality checks to be automated and prompted smooth teacher onboarding at a large scale without compromising on learning quality. On the business side of things, this streamlining decreased logistical chaos and generated goodwill among the parents.
Real-Time Interaction Drives VIPKid’s Success
They’re not a feature; live interaction is the product. VIPKid is not like do-it-on-your-own-time platforms , which have to re-craft their business model to fit with school structures. In addition to being able to correct a facial expression, pronunciation, and get immediate feedback, all of which are impossible with pre-recorded material.
If you’re building a live-class edtech platform like VIPKid, latency is a business risk. Even a few hundred milliseconds of delay can short-circuit learning, especially among younger students. This is one reason VIPKid also invested heavily in low-latency video delivery, intelligent routing, and region-aware infrastructure.
It also keeps both parties, in real time, honest. Teachers are watched and evaluated for their engagement and the quality of their teaching, and students’ focus is generally easier to hold in class. This mutual accountability results in some of the highest retention rates in education, any subscription-based education platform’s most powerful revenue lever.
Live-Class Platforms vs Recorded EdTech Apps: What’s The Difference?
Many of the founders I really connect with simply do not understand the chasm between Old Classrooms (Face to Face) and eLearning apps. On digital platforms, like recorded ones, it would be hard to design a lot more content and not much performance. Live-class platforms are already arbitrary, content-less.
When you are building a live-class platform, as is the case with VIPKid, your system has to handle live failures, human dynamics, and compliance all at once. A recorded lesson can be paused, scrubbed back, and reloaded. A live class cannot. There should be rescheduling logic for a missed class, refunds, teacher reassignment, and parent communication flows.
Another difference lies in compliance. When it comes to children in live classes, the requirements around data should become even stricter. Recorded platforms can anonymize much of their data flow. Live is not, because a participant’s identity and video are critical components of the live experience.
The Backbone of a Live-Class Platform, Like VIPKid’s.
Front End Impact On Students, Teachers, And Parents
A successful Live-class platform “3-in-1 pack” having three different interfaces for the same application for Admin, Trainer, and User. Students need simplicity and engagement. Teachers need control and reliability. Parents need visibility and reassurance. This is a key difference if you’re interested in creating a live-class platform similar to VIPKid.
From the student’s point of view, the interface should appear as frictionless: Entering a class should feel as seamless as joining a conference call, complete with automatic device checks and step-by-step onboarding. Both are user-friendly and fresh-looking apps that have a load of interactive props, animations, and whiteboards that should be able to be loaded fast without clogging up the interface.
The latter requires a different interaction. They want lesson navigation tools, classroom controls, student feedback, and real-time performance tracking. The quality of instruction would be affected immediately by any kind of delay or misunderstanding. VIPKid solved for this by baking tutorial workflows right into the classroom UI rather than requiring teachers to switch over to a different tool.
The live sessions are seen by relatively few parents, but the dashboard has been crucial for retention. Tracking progress, course history, completed and pending classes, as well as teacher feedback, also contribute to trust-building when parents don’t quickly see the value, and churn spikes.
Real-time Class Coordinator of Back-end Infrastructure
The vast majority of live-class platforms are broken on the backend. “Real-time” classroom management is a system that orchestrates across scheduling services, video SDKs, user authentication systems, and analytics pipelines. To build a live-class like platform (like VIPKid), you need strong and resilient event-driven backend services with incredibly high levels of observability.
Every class generates a flow of events from booking and reminders, through the start of the class, all the way to attendance taken, completion, and feedback. These occurrences should be monitored faithfully even during times when there is restricted network access. The VIPKid backend is responsible for idempotency and retries between sources.
Session state management is another challenge. The platform needs to learn intimately who joined, when they joined, and whether the class met quality standards. This data affects Teacher Payments, Refunds, and QA workflows, so there is not too much flexibility on the back-end.
The Microservices And Event-Driven Architecture In Live Classes
In terms of real-time education platforms, monolithic is a buzzkill. Services VIPKid is an example of a platform that uses microservices to separate out concerns like scheduling, payment, video session orchestration, and analytics. This allows teams to scale certain parts without the full service going down.
If you are a live-class like VIPKid, then you need to be event-driven. For example, “class started”, “teacher joined”, or “connection quality dropped” — these are all incidents that should automatically result in actions. Perhaps these types of actions are alerts, failover routing, or QA flags.
Additionally, event-driven systems support the extraction of more sophisticated knowledge. The platform can also learn over time, such as detecting patterns like recurring connection problems in certain regions of the world or discrepancies between teachers. This intelligence is then used for platform optimization as well as quality control.
Learn in the Classroom on the Fly – DFM SDK Alignment
What a Classroom SDK Is, and Why It Matters
It’s the plumbing for any live education platform, really; it’s a classroom SDK. It has live audio/video, chat, and interactive capabilities in a moderated environment. When you’re building a live-class platform like VIPKid, the classroom SDK is not just a communication layer — it’s the classroom.
An education-focused classroom SDK is not a video conferencing tool – you can embed teaching logic in your session. This includes role-based access control, session lifecycle control, recording permissions, and a hook to check the quality. VIPKid’s model is certainly based on predictability and control that isn’t possible with the kind of SDK-level breadth work you’re describing.
From a scalability standpoint, an SDK in the classroom brings the bulk of GH complexity into real-time media management. This allows product teams to focus on pedagogy, workflows, and analytics without having to worry about the eng-level details of stream protocols. But making the wrong choice of SDK can leave you locked into performance or compliance limits that are difficult to get out of later.
How to Choose the Right Video SDK for Live Online Classrooms
But, when you’re building a live-class platform ala VIPKid, you can’t use just any video SDK. In this way, low latency, global coverage, and fine-detailed session controls need to be addressed by education platforms. Task-oriented meeting or webinar SDK crashes while we are teaching 1:1 with kids.
An ideal SDK would like to offer: •sub-second latency support •adaptive bitrate streaming(at least on lower perf quality) •routing to edge around the globe # Key Features ✓ sub-second latency support. It must also implement some other APIs for real-time monitoring of packet loss, jitter, and connection drop. These invariants are important for auto-QA and post-class analysis.
Equally important is extensibility. Your SDK should allow you to stack features such as whiteboards, reactions, and navigation on top of your lessons with no impact on performance. VIPKid-like platforms will succeed when content and communication are not only connected but also that much closer, not some generic video call over-bells-and-whistles.
Audio-Video, Sharing, and Low-Latency Exigencies
Audio is more important than video in live learning. The way that you speak, your voice , and how clear it is make a difference in what the kids learn. If you are building a live-class platform like VIPKid, the settings for SDK should have an audio that’s robust enough in delivery (like even a bad connection shouldn’t result in patchy voice).
Video really needs to adapt quality on the fly to the bandwidth, but audio should never be cut if you can avoid it. There should also be instantaneous syncing with screen sharing, and with interactive elements — particularly when teachers are leading students through visual tasks.
“You can’t have low latency as an afterthought; it has to be built in. Even the smallest of delays can make a conversation feel unnatural, particularly for very young children. It is also why global media route and EPSO-like apps do not simply rely on SDK default settings but invest more than the average into both global media routing and real-time production ops.
Handling Network Fluctuations and World-Wide Connectivity
Distributed systems and networking. Global-scale platforms face unpredictable network environments. The variability is unavoidable because one student is logging in from a home network in one country , and the teacher another. For a live-class platform such as VIPKid, your system must be able to gracefully manage spikes and recover.
It features dynamic bit rate adaptation, auto-reconnection logic, and seamless fallback. For instance, in the event of a video stream collapse, resolution must remain down-scaled with no impact on class flow. Reconnecting should be fast if a connection drops, and you should know where the connection stands.
Sophisticated platforms may even route traffic to their nearest edge nodes for latency purposes. The more information it receives, such as regarding connections at any given point, the better decisions can be made region by region for telco-level reliability at scale.
VIPKid-Like Platforms , Interactive Electronic Whiteboard, and Advanced Classroom Features
In-session whiteboards, slide annotation, and other learning tools
That interactivity is what makes the video call a classroom. Part of what makes or has made VIPKid popular is that it has found a way to engage students by mixing in visual and tactile elements. When you build a live-class platform like VIPKid, whiteboards and annotation tools need to feel native — not slapped on.
Educators, instructors, and students who are attracted to the immediacy of whiteboard technology can sketch, highlight, or otherwise visually direct their work in real time. All these operations require synchronization of the actions across machines in a flow time. In the same way, any delay or out-of-sync in learning distracts and removes you from immersion.
Annotations also create valuable data. All this can be logged and even analysed for teaching style and student interaction. This information is then fed into QA systems and teacher observations, providing a feedback loop.
Gamification and Engagement Mechanics in Live Classes
Gamification is not fun - it´s a behavioural tool. Platforms like VIPKid offer rewards, reactions, and interactive cues to keep young students engaged. After all, if you’re looking to build a live-class platform of your own à la VIPKid, then you would certainly need such mechanics wrapped into the classroom experience in some manner.
Bad gamification is distracting, not engaging.” The key is contextual relevance. The reward should reflect the learning objective, not distract from it. Engagement tools need to be something teachers can use on demand and not lose control of a session.
It takes assets over time to engage with data. Platforms might, in particular, know the activities that lead to better performance and create classes based on them. This feedback loop that arises from data is one of the chief benefits of live digital classrooms over offline teaching.
Session Playback And Review Performance
There are many good reasons to record live class. It provides transparency and closure to parents, and helps with QA reviews. When you’re constructing a live class platform like VIPKid that includes recording, those workflows need to be in compliance, secure and as streamlined as possible to manage.
There is no other option than to automatically start recordings with the session (if there are no consent rules). The digital storage must be encrypted, and access extremely restricted. Families tend to seek on-demand listening, but at-home teams are looking for features such as the ability to take notes and review sessions.
This is where recordings will be most useful — in performance review. Students can receive personal feedback, and A.I. systems can take stock of speech patterns, pacing, even attentiveness. This transforms such archived recordings from passive records into active nudging tools.
TMS for Live Online Teaching
Teacher Onbaording, Validation and Profiling System
‘Everything Is Going to Change’ Teachers are the platform’s public face. Basically, it’s the quality of teachers that gives confidence in the platform. To scale a live-class platform like VIPKid, onboarding has to work well, be consistent and scalable.
Verification procedures usually include identification proof, qualification check, demo class and background check. These are not just mechanical functions; they’re essential for maintaining credibility and compliance guidelines — especially when it comes to children.
Teacher profiles should be not just rudimentary. How well class matching works depends on performance evaluation, certificates and availability and teaching style. Improved Student-Teacher Matchups A strong profile system leads to better matching of students and teachers that directly impacts retention.
Scheduling, Availability, and Time-Zone Handling
Scheduling is sneakily difficult in the world of global live education. Or teachers and learners might just be operating in different time scales, with their windows of opportunity not necessarily matching those of each other. When you build a live-class platform, such as VIPKid, the scheduling logic has to be sound and resilient.
Your system should handle rotating slots, last-minute swaps and automatic reminders. You can’t very well carry home a school year schedule, or calendar, but guess what? By the time you converted its data from one set of hours to another and on again over into your localized (or whatever) time zone, there might indeed be some missing classes… etc….There would certainly be financial loss and so damage reputation.
Advanced systems further improve scheduling to the demand profile. This can also encourage teachers to open slots during peak hours and bridge the gap between supply and demand by recording their booking data.
Performance and Educating Class Quality Control
The selection of teachers cannot only depend on taste. Platforms like VIPKid employ a formalized procedure of review that incorporates both human and algorithmic signals. Footnote recording needs to be live analytics-based for when building such a platform as VIPKid.
Mostly they are measure by the counts in attendance, engagement, student feedback and technical reliability. These figures factor into teacher ratings, bonuses and development.
Transparent evaluation benefits everyone. Teachers and instructors know what to expect; students feel reassured, and the platform delivers scalable quality. This level of alignment is one of the highest differentiators in live ed.
Student & Parent Experience In a live-Class Platform
Also Read: What Are Some Examples of How e-learning App Is Being Used in Education Today?
Seamless Class Booking and Rescheduling
When you are an education company, and you need to build a live class platform like VIPKid, the booking experience is a critical piece of not only conversion but retention. “You expect the process to feel seamless, predictable and transparent as a parent, particularly when you have sessions that are ongoing and integrated into a child’s weekly schedule.” Faith is undermined by lack of faith in availability or scheduling.
A well designed booking flow automatically looks at a student’s availability and matches them to eligible teachers timezones, preferred lesson types and historical performance. It respects contraints against overlap and permits modification within certain fixed bounds. VIPKid-like companies use “smart” buffers and cutoff windows to protect teachers from last-minute disruptions while also giving parents the illusion of control.
Rescheduling is equally important. And if a class was skipped or canceled, the system should automatically trigger workflows that instruct refunds, credits or assignment of new classes without anyone having to intervene manually. This sort of operational polish is a necessity if you’re going to build a live-class platform like VIPKid that scales without being buried by support teams.
The QA Systems in Live-Class-based Platforms
Real-world class monitoring and automated QA Combines best features from other systems: A real time class monitor Automated QA for output driven results, these two are major benefit.
The live training quality control cannot only rely on the review after class. When you build a live-class platform like VIPKid, QA needs to start the minute a class starts. Sights and sounds Clarity of audio Stable video Quality Due-time attendance Time-based classroom participation These live monitoring systems monitor clarity of audio, stability of video, time-of-attendance and classroom participation as it happens.
That would allow the platform to quickly generate alerts for most problems (eg multiple disconnects or inconsistent session state). Occasionally those automated alerts can reach support folks or trigger backup plans before the learning is disrupted. This proactive position does not just minimise refund rates, but it also safeguards the platform’s reputation.
The same thing is repeat checked at automated QA. All classes are measured against the engineers on the same technical and behavioural criteria, so there would be no scope for subjectivity or bias to seep through. Over time, this data sets up a repository that goes beyond individual teachers and classes.
Compliance responsibilities for platforms like VIPKid
Compliance is not optional with in-person classes and children attending. “If you’re building a live-class platform like VIPKid, you have to bake privacy and security into the design from day one. Privacy regulations, such as COPPA, GDPR and FERPA control the manner in which data about kids can be collected, stored and used.
This spans across much of the system from user sign-up and consent management, through to video recording and analytics. Parental consent must be transparent, traceable and reversible. There should be clear policies of access and retention with data storage policies, to not unnecessarily expose sensitive data.
On platforms like VIPKid, compliance is seen as a feature, not a limitation.” Then, if you’re open and honest with your parents or whomever is helping you out, and they can see what they need to be able to see, they will trust the franchisee a lot more.” Clear communication to parents, transparency around policies and technological safeguards “Having really strong technical safeguarding….. creates confidence down the line. And without that foundation, not even the most gifted classroom technology can gain traction.
Security framework of live online class platforms
If you’re a live-class platform like VIPKid, security also has to be woven into the streaming layer because ‘adding it back in afterwards’ doesn’t really work well. Live video with kids is understandably sensitive, and violating it can cause immediate destruction reputation-wise as well as in court. Some form of secure streaming begins with the encryption of video and voice while it is in transit through end-to-end encryption or transport layer encryption.
Encryption requirements must be consistent across all devices and in every network. It does assuming signing (signaling, session and recondings). Other firms such as VIPKid also have strict key management policies to ensure that encryption keys are never reused or leaked. By closing down the media pipeline at that level, the platform effectively prevents interception or unauthorized access.
Otherwise, secure session setup is as important. Different time bound token IDs should be generated for each class that is grant privilege for the session and it expires once the class ends. This way only with a leaks session link it’s not possible to join for unauthorized people.
Turning a VIPKid-Duplicate Platform into Global Scale
Live learning platforms experience heavy peaks of traffic at peak learning times. For instance, when implementing a live-classroom product like VIPKid, we need our infrastructure to handle thousands of classes as they happen, and scale horizontally automatically. In an environment with daily and seasonal demand volatility, static capacity planning is insufficient.
Auto-scaling methods provide ways to scale-up or scale-down the computing and media resources on-the-fly for a session. That elasticity is to keep the performance level while the network is overwhelmed during rush hours, but manage costs when it’s less crowded. VIPKid-like platforms will frequently couple predictive scaling with real-time metrics in order to meet demand.
Servers are not the only thing that scale. The databases, messaging queues, analytics pipelines should also scale seamlessly just like your streams and processes. End-to-end scalability is important to have in design, since a choke-point at any of these stages can overflow into (disruptions) up-class.
Monetization Models for Live-Class Platforms
The architecture and the users of a platform are also tied to revenue strategy. When you are building a live-class platform such as VIPKid, it is extremely crucial that you pick the perfect model for your monetization and survival. (the trigger point). On-demand via pay-per-class models are flexible and with a low entry barrier to attract users at various opportunities, such as new user sign-ups or trial classes.
But they prefer to go for subscription-based models which provide classic recurring revenues and require a lifetime relationship. VIPKid’s model combines a structured package system with repeat sessions, so learning and business can accrue. This model also helps to simplify things for teachers, in terms of timing and capacity planning.
Each model has operational implications. Per-class charging requires explicit bookings and cancellations, subscriptions need to be able to renew (or pause) at the right time, and recharging also needs to have guarantees. Understanding these trade-offs early can help ensure that monetization is driving growth rather than acting against it.
Technology to Use for Making a Live Class Application Like VIPKid
If you want to make a live-class on-demand platform like VIPKid, the underlying tech stack must be capable of real-time interaction, high concurrency, and quick iteration. For the frontend, we’re thinking responsive and reliable. Student and teacher user interfaces have to load quickly, accommodate real-time updates without any stuttering, and recover from minor outages gracefully. Well-known web frameworks can have component-based interfaces that interact without reloading the whole page, even when sessions are live and dynamic. On the backend, it’s all about scale and reliability. Dynamic class orchestrators, scheduler logic, payment systems, and financial transaction quality automation systems need to work as separate silos, but remain concurrently cohesive. Backend services should be as stateless as possible for scaling under load. This architectural agility is essential when you run thousands of live classes simultaneously.
Apps provide an extra level of accessibility and convenience — to parents watching process, to teachers swaying schedules. Mobile apps must be able to mimic the core platform feature and/or accommodate lower bandwidth and heterogeneous client device capabilities. Consistency across web and app makes it easier to trust and use both.
VIPKid Competitor Development Time and Cost How long will it take to develop a site like VIPKid?
The development process very much depends on whether you are going for a go-to-market soon or well developed with a fully functioning product. Want to build an online live-class platform similar to VIPKid? It is a risk-reducing, validation-accelerating way to go before jumping into something like that. A MVP offering usually includes basic live-class capabilities, basic scheduling, teacher on-boarding and compliance needs.
A complete platform is layered on top of this foundation integrating comprehensive QA rigs, AI driven analytics at half a million decision points already, global compliance layers and operational automation. The more there are factors, the worse the development complexity is going to be and consequently the cost of developing it over any longer period. The idea is to scope the development based on business milestones rather than try to replicate VIPKid’s full ecosystem from day one.
There is also cost —the amount of development hours invested, the cost of infrastructure and third party SDK licensing, compliance audits after this fact plus continued optimization. Accounting for these costs up front also prevent the misperception of how much investment is actually required to compete at scale.
Why Bestech UK is Your Go-To Partner for a VIPKid Style Live-Class Platform
And the right development partner is just as important as selecting technology. When you decide to build your own live class platform similar to VIPKid, ensure that there’s a solid team who is experienced in real-time systems, compliance-heavy environments and mass marketing-based product design. Bestech UK have a wealth of experience creating tailored app and software solutions for educational purposes along with real-time platforms. As an education app development company, we are here to help you.
We are long-term sustainable, not fast build. We architect scalable solutions, integrate with best-of-breed classroom SDKs, and bake-in QA and compliance from day one. This reduces business risk and time to market.
Our mission at Bestech UK is to help founder/education businesses to build a strong technical foundation from the business need. From MVP to scale (and globally!), we are your strategic tech partner, ensuring your live-class platform is always alive and kicking to scale even more.
Conclusion
But, real time education vs legacy eLearning platform is a different animal. When you are creating a live-class style platform like VIPKid, it needs to be an ecosystem with everything running like clockwork — technology quality, teacher quality and compliance requirements all working together. Each live-class is a quality promise to the parents and students delivered by strong classroom & SDK integration, automated Qas, security & compliances.
The secret behind the success of VIPKid and companies like it isn’t simply the live video: It’s the operational intelligence wrapped around that. From bringing on teachers and observing performance, to following along in realtime and keeping the infrastructure scalable, our goal is to present less friction and more trust. It’s this level of sophistication that can transform a live-class idea into an edtech business poised for global growth.
“Let the message for founders and education companies be crystal clear,” he said. Success is achieved by zeroing in on reliability, accountability and learner outcomes as opposed to feature bloat. With the right approach and a technology partner to help you achieve it, it is possible to build offerings like VIPKid that deliver true value in every dimension.
FAQs
How long will it take to develop a live-class platform like VIPKid?
How much time does it take to develop a live class platform like VIPKid? The timeline of building a live-class platform such as VIPKid depends on features and complexity. A basic live-class MVP may take months to get to market at least, while a full-featured platform is likely going to take anywhere from several months into years depending upon how complex your QA, analytics and compliance features are. By rolling development, risk and budget can be managed appropriately.
What are the challenges associated with live- class platforms, as opposed to recorded learning apps?
Continuing to conduct such platforms on a live-class format is in real time, which, again not only creates technical issues but operational and compliance as well. There is no place to hide when things don’t work for users, as can be hidden in recorded apps. If you are building a live class platform in the magnitude of VIPKid, you also have to think about not only the latency, and session stability during the class, but also about the teacher’s behavior and child’s data protection (what if someone in China send Mr.X 10 pizzas when-student-dones-X-things?) When we building live-room for one-on-one classes with wall.Chat things started changed significantly: architecture becomes wo-after this initial horror-phase monitoring suddenly matters.
What is the classroom SDK needed for creating an app like VIPKid?
There is no one-size-fits-all answer. VIPKid requires the best classroom SDK, one with low latency and global coverage as well as deep customization. It also ought to provide us with real time quality metrics and integration hooks for QA and compliance work flows. Your cities of interest, user growth & feature plan.
How does streaming class platforms scale while retaining teaching quality?
Quality is assured through a combination of standardized on-boarding, real-time oversight and post-class review. On platforms that support a live-class platform similar to VIPKid, they leverage their structured metrics with session recordings and automated alerts to ensure consistent quality across thousands of teachers.
Is compliance really necessary for early-stage live education platforms?
It’s definitely relevant from the outset, and especially when there are kids involved. Rules to safeguard children’s digital data and online teaching should not turn on company size. Decisions taken early to blow off compliance can lead to costly re-dos and legal exposure down the road, which is why it’s among the blocking-and-tackling considerations when you’re building something like a VIPKid live-class platform.
