Number Chomp vs Prime Not Prime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Chomp
Engage in a fun math practice game where you guide a character through numbers and equations to find correct answers. Master addition, subtraction, multiplication, division, and pre-algebra while avoiding obstacles. Earn points by solving problems and advancing through levels.
- Math skill practice
- Addition, subtraction, multiplication, division
- Pre-algebra concepts
- Score-based gameplay
- Obstacle avoidance
- Level progression
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Welcome to Number Chomp! A fun game for practicing and enhancing your math skills! Guide Chomper through numbers and equations searching for correct answers. Practice various math subjects like addition, subtraction, multiplication, division, and pre-algebra. Based on a classic game from grade school, Number Chomp is an updated version that fits in your pocket. Gain points by chomping correct answers. But watch out for bad guys and other obstacles keeping you from advancing to the next level. No ads or In-App Purchases!
Prime Not Prime
A fast-paced game that combines number recognition with a swiping mechanic. Players swipe right for prime numbers and left for non-primes, aiming to build long streaks. It's designed to be both educational and entertaining, with leaderboards for competitive play.
- Addictive swiping gameplay
- Test prime number knowledge
- Build streaks and complete challenges
- Global leaderboards
- Vibrant visuals and animations
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Ready to swipe your way to prime number mastery? Prime Not Prime is the fun, fast-paced game where math meets swiping! Like Tinder for numbers, you swipe right for primes and left for everything else. Easy to learn, but can you handle the streak pressure? Features You’ll Love: • Addictive Swiping Gameplay: Swipe numbers left or right in a race against time. • Test Your Knowledge: Spot prime numbers and learn fun math facts. • Streaks and Challenges: Compete to see how long you can keep your streak alive. • Leaderboards: Challenge friends and global players to see who’s the prime master. • Widgets: Guess your prime numbers right from your Home Screen. • Fun Design: Vibrant visuals and satisfying animations make every swipe exciting. Whether you’re a math whiz or just love a challenge, Prime Not Prime is the ultimate game for your brain. Swipe, learn, and have fun with prime numbers! Privacy Policy & Terms: https://www.rspoon3.com/prime-not-prime/privacy/
Screenshots
Verdict
Number Chomp and Prime Not Prime both sit at 4.4 stars, but that hides the real split: 100% of Prime Not Prime's written reviews are positive against 76% of Number Chomp's. Number Chomp's advantage is ratings volume (426 vs 6) and device support (3 vs 1). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for Number Chomp against 4.3 for Prime Not Prime. That said, the two scores are not equally well evidenced: Number Chomp has 426 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 76% of Number Chomp's written reviews are positive against 100% of Prime Not Prime's.
Number Chomp ships an update every 5 weeks, Prime Not Prime monthly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | Number Chomp | Prime Not Prime |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (426 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 76.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 426 — better | 6 |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Sedam | Richard Witherspoon |
Customer experience
Number Chomp
Prime Not Prime
Bugs and requests
Number Chomp
Reported bugs
2 issues- 🐛 Window sizing and zoom issues on Mac
- 🐛 Game opens too big and off-screen on Mac
Requested features
4 requests- Add sound effects
- Add background music
- More lives
- Fix window sizing and zoom on Mac
Prime Not Prime
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Number Chomp
No in-app purchases
Prime Not Prime
No in-app purchases
Questions
Is Number Chomp free?
Is Prime Not Prime free?
Which has better reviews, Number Chomp or Prime Not Prime?
Do Number Chomp or Prime Not Prime have ads?
Which is updated more often, Number Chomp or Prime Not Prime?
Other comparisons
