SaaS / business softwareEducation & e-learningOriginal by Kahoot!
Kahoot! turned a trivia contest in a classroom or meeting into a live game experience that everyone joins from their own phone. The host projects the question on the big screen, participants enter with a PIN without signing up, answer quickly with colourful buttons, and the leaderboard raises the excitement with every question. Music, countdowns and live rankings turn an ordinary review activity into a contest everyone watches closely.
Building something similar requires a web app with a question editor, a host screen, a participant interface and a real-time game server that keeps thousands of people in sync at once. Scoring that rewards fast answers, team mode, an asynchronous mode that can be played as homework, result reports and a ready-made quiz library are the core of the product. For organisations, team accounts, subscription management and brand customisation should also be planned.
How Kahoot! works: the core user flow
How many apps and dashboards do you need?
Host / teacher panel
The interface for preparing quizzes, starting the game, and managing questions and the leaderboard on the big screen.
Participant interface
The screen where participants join with a PIN without signing up and answer from a phone or browser.
Organisation admin panel
A panel where schools or companies manage user licences, shared content and reports.
Admin panel
An internal panel for monitoring subscriptions, the ready-made quiz library, moderation and system load.
Critical features of a product like Kahoot!
Real-time game engine
Questions are sent to all participants simultaneously over WebSocket, and answers are collected with millisecond precision.
Joining with a PIN, no account
Participants join with just a game code and a nickname without downloading an app; inappropriate nicknames are filtered.
Speed-based scoring
Correct and fast answers earn more points, with streak bonuses and team mode supported.
Rich question types
Multiple choice, true/false, ordering, puzzle, open-ended and poll questions are built with images and video.
Asynchronous homework mode
A quiz becomes an assignment that students can complete at their own pace until a deadline.
Detailed reports
Per-question accuracy, topics students struggled with and participant results are exported to Excel.
What goes into the first version, what comes later
First version (MVP)
- Multiple-choice and true/false quiz editor
- Live game with PIN and host screen
- Speed-based scoring and leaderboard
- End-of-game report
- Free plan and a subscription with more participants
Later releases
- Team mode and asynchronous homework mode
- Ready-made quiz library
- AI quiz generation from text
- Organisation accounts and brand customisation
Modules and how the budget is calculated
The budget is calculated with 360 SOFT’s pricing model from the modules below, about 22 screens and the project’s complexity: roughly 171 person-days for the full scope and 99 person-days for the first version. Every module you drop lowers the budget directly.
| Module | Phase |
|---|---|
| Sign-up, login, social login | First version |
| Roles and permissions | First version |
| Multiplayer backend (game) | Later release |
| File, photo, video upload | First version |
| AI features (LLM, RAG, recommendations) | Later release |
| Subscriptions and recurring billing | First version |
| Online payments (Stripe / PSP) | First version |
| Reporting and analytics | First version |
| Admin dashboard | First version |
| GDPR and security hardening | First version |
| Multi-language | First version |
Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €600 / month. We send a fixed written price within 24 hours after a free discovery call.
The hard parts
Concurrent connection scale
At large events thousands of participants connect at once, so horizontally scaled WebSocket servers and room management are needed.
Latency fairness
Time calculation must be fair for participants on different network speeds, using server time and latency compensation.
Child safety and nicknames
In school use, filters and teacher controls are essential for inappropriate names and for personal data and GDPR purposes.
Business model
The freemium SaaS model is common in live quiz software: a free plan with limited participants and basic question types, and teacher, corporate training and event plans sold as monthly or yearly subscriptions based on participant numbers and advanced features. School and company licences and ready-made content packs bring extra revenue.
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 Kahoot!
Most people searching “build software like kahoot” 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 Kahoot! 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 software like Kahoot!?
A first version with a quiz editor, live game and leaderboard can be ready within a few months. Load testing at large-event scale and extra question types extend the process.
Do participants need a mobile app?
No; the participant interface can be a lightweight web page that runs in a mobile browser. A mobile app can be added later for features like homework mode and notifications.
Are there copyright or trademark issues?
The idea of a live quiz with a leaderboard is free to use. The name, logo, colour and shape layout, music, interface and code cannot be copied; this information is not legal advice.
What should I look for when choosing a real-time software company?
Pick a team with experience in WebSocket scaling, load testing and latency management. Ask how many concurrent participants they have tested and how.
