Knowster
Real-time quiz duels worldwide
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Knowster is the ultimate real-time quiz duel — challenge players one-on-one or team up with your friends and take on the world together!
LIVE PvP QUIZ BATTLES
Face real players in lightning-fast 1v1 duels. Both answer simultaneously under time pressure — whoever is faster and more accurate wins!
PLAY WITH FRIENDS AGAINST THE WORLD
Create a clan with your friends and compete together against other groups. Clan vs. Clan — who is the smartest team? It's not just about you, it's about your whole crew!
LEADERBOARD & ELO SYSTEM
Climb the global solo rankings — or lead your clan to the top of the clan leaderboard. Show the world who the true quiz champion is!
NO LANGUAGE DISADVANTAGE
All questions available in German, English, French, Spanish and Arabic. No native speaker advantage.
14,000+ QUESTIONS
Entertainment | Sports | Science | History | Technology | General Knowledge
AVATAR SHOP
25+ unique avatars from Common to Legendary. Earn coins through victories — and unlock legends like Hercules!
FREE TO PLAY
Completely free. Premium avatars optional.
Ready to prove yourself? Download Knowster — solo or with your clan!
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
19,000+ questions — fully revamped for young players! New hexagon design, victory animations, country clans. Song & movie titles now correct in every language.
The developer, Mahdi Aouas, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Mahdi Aouas
- Size
- 57.6 MB
- Category
- Trivia
- Compatibility
Requires iOS 13.4 or later.
- iPhone
Requires iOS 13.4 or later. - iPad
Requires iPadOS 13.4 or later. - iPod touch
Requires iOS 13.4 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 10000 Coins $9.99
- 4000 Coins $4.99
- Premium 1 Year $39.99
- Premium 3 Months $11.99
- 1500 Coins $2.49
- 500 Coins $0.99
- Premium 1 Month $4.99
- Copyright
- © 2026 Mahdi Aouas. All rights reserved.