Number Ninja
Quick-fire mental maths
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Sharpen your maths with quick-fire questions! Pick your level and operations, build streaks, earn stars, and race the clock to become a Number Ninja.
Number Ninja turns maths practice into a fast, friendly game. Choose your challenge, answer quick-fire questions, and watch your streak grow as you train to become a true Number Ninja.
Perfect for building speed and confidence with mental maths — whether you're brushing up on times tables or keeping your arithmetic sharp.
HOW IT WORKS
• Pick a difficulty: Easy, Medium, or Hard
• Choose what to practise: addition, subtraction, multiplication, division — or mix them all
• Answer 10 quick-fire questions per round with three lives
• Build streaks for bonus points and earn up to three stars
• Beat your best score and come back to top it
WHY PLAYERS LOVE IT
• Friendly, colourful design that makes practice feel like play
• Bite-sized rounds that fit into a few spare minutes
• Instant feedback that builds real number fluency
• No pressure — just beat your own best score
PRIVATE BY DESIGN
• Works completely offline
• No accounts, no sign-ups, no ads
• No data collected — your best score stays on your device
No in-app purchases. No advertising. Just maths, made fun.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Anand Sengupta, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anand Sengupta
- Size
- 779.3 KB
- Category
- Trivia
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 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+
- Copyright
- © 2026 Anand Sengupta