Mobile appEducation & e-learningOriginal by Cambly
What sets Cambly apart is that you can start speaking English with a tutor who is online right now, without waiting for an appointment. For learners, speaking skills improve through real conversation more than textbooks; the app makes this measurable with per-minute subscriptions and recorded lessons. On the tutor side, flexible working hours give the platform a constant pool of tutors.
To build something similar you need a mobile student app, a tutor app where tutors go online and accept calls, and an admin panel. The back end includes an instant matching queue, WebRTC video calls, lesson recording, a minute counter and subscription management. Per-minute payouts to tutors and quality control are an integral part of the operation.
How Cambly works: the core user flow
How many apps and dashboards do you need?
Student app
Students talk instantly with an online tutor, schedule planned lessons and rewatch past lesson recordings.
Tutor app
Tutors go online, accept incoming calls, leave lesson notes and track their earnings.
Admin panel
The team manages tutor recruitment, quality control, subscriptions, refunds and per-minute payouts.
Critical features of a product like Cambly
Instant tutor matching
A queue system that lists online tutors in real time and starts a call with a single tap.
Per-minute subscriptions
Plans that include weekly lesson minutes; time used is counted during the call and the balance updates instantly.
Lesson recording and replay
Calls can be recorded with the student's consent and rewatched later, with a GDPR-compliant retention period.
Lesson materials
Conversation cards prepared by level and topic, plus content that opens on screen during the call.
Tutor quality score
Tutor ranking and a warning system based on ratings, lesson completion rate and complaint data.
Children's accounts
A dedicated tutor pool, content and parent update screens for children, under parental control.
What goes into the first version, what comes later
First version (MVP)
- iOS and Android student app with video calls
- Going online and accepting calls in the tutor app
- Per-minute subscriptions and in-app purchases
- Post-lesson ratings and a list of past lessons
- Tutor payout report and a basic admin panel
Later releases
- Scheduled lesson booking and a regular tutor
- Lesson recording and AI-assisted pronunciation feedback
- A dedicated kids' product and parent dashboard
- Corporate business packages
Modules and how the budget is calculated
The budget is calculated with 360 SOFT’s pricing model from the modules below, about 26 screens and the project’s complexity: roughly 186 person-days for the full scope and 122 person-days for the first version. Every module you drop lowers the budget directly.
| Module | Phase |
|---|---|
| Sign-up, login, social login | First version |
| User profile and settings | First version |
| Roles and permissions | First version |
| Admin dashboard | First version |
| Video / voice calls | First version |
| Subscriptions and recurring billing | First version |
| Online payments (Stripe / PSP) | First version |
| Push notifications | First version |
| Email / SMS notifications | First version |
| Ratings and reviews | First version |
| File, photo, video upload | First version |
| Reporting and analytics | Later release |
| Multi-language | First version |
Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €650 / month. We send a fixed written price within 24 hours after a free discovery call.
The hard parts
Balancing supply and demand
Students should not be kept waiting at peak times, and tutors should not sit idle at quiet times; dynamic incentives and shift planning are needed.
App store subscription rules
The App Store and Google Play require their own billing systems for digital content subscriptions; commission and web payment options must be planned.
Safety and moderation
One-to-one video communication requires reporting tools against inappropriate behaviour, a recording policy and strict controls, especially for children's accounts.
Business model
The best-fitting model is a monthly or annual subscription that includes weekly lesson minutes; discounts on longer plans reduce churn. Tutors are paid per minute, and the difference is the platform's revenue. Corporate language training packages, children's plans and extra-minute sales broaden the revenue channels.
Get a free quote for your project
Let us scope it together and send a fixed written quote within 24 hours. NDA on request; you own the source code.
Choosing a company to build an app like Cambly
Most people searching “build an app like cambly” are really looking for a reliable app development company. When comparing quotes, check four things:
- Can you try similar products they have shipped, in the stores or live?
- Are the source code, design files, servers and store accounts transferred to you by contract?
- Do they show a working demo every two weeks, with written scope and acceptance criteria?
- Are maintenance, scaling and GDPR/security costs written into the quote?
Copyright and trademarks
A business model and features are generally not protected on their own, but the Cambly name, logo, interface design, content and source code are. That is why we build a product with similar functionality but your own brand, design and code. This is not legal advice; we recommend a trademark search before launch.
Frequently asked questions
How long does it take to build an app like Cambly?
A first version with video calls, instant matching and subscriptions takes a few months of development. Lesson recording, children's accounts and AI features can be left for later releases.
How many separate apps are needed?
Three sides are required: the student app, the tutor app and the admin panel. The tutor side can also start as a web app in the first phase.
Should subscription payments go through the app stores?
For digital service subscriptions, the stores generally require their own in-app purchase systems. The current rules should be checked before development, and a web payment option should be evaluated separately.
What should I look for in a company building an app like Cambly?
Check whether the team has previously built products with real-time video and subscriptions. Be sure to ask about their approach to scaling, lesson recording storage and GDPR.
