π Challenge vs 3.14 Master Pi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
π Challenge
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"Pi Challenge" is a fun and engaging brain-training game designed to help you memorize Pi while improving your memory and concentration skills. Easy-to-use controls make this game accessible to everyone—just input the next digit of Pi correctly to extend your streak. Be careful—one wrong digit and it's game over! Compete against yourself and your friends, share your best scores on social media, and enjoy a quick brain exercise anytime, anywhere. Exciting updates are on the way, including a Time Attack mode, online leaderboards, and educational features to master memorizing Pi. Join the challenge today and become a Pi master!
3.14 Master Pi
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3.14 Master Pi makes learning and memorizing Pi (3.14159) fun, visual, and addictive. Challenge your brain, compete with friends, and discover the hidden beauty of circles, numbers, and logic through sleek, intuitive gameplay. Features: • Learn and memorize Pi by practicing digits in chunks and unlocking new levels. • Speed challenges let you race against time to recall as many digits as you can. • Real-world examples, like the Pizza Value Challenge, show how Pi applies to life. • Track progress with accuracy, streak, and milestone stats. • Customize your theme colors and keypad layout for a personal experience. • Achievements and ranks reward your improvement from "Pi Novice" to "Pi Master." Whether you are a math enthusiast, student, or puzzle lover, Master Pi helps you train your memory and enjoy exploring one of the world’s most fascinating constants. No ads. No distractions. Just pure Pi.
Screenshots
Verdict
The clearest difference is in-app purchases: π Challenge at none against 3.14 Master Pi's 5. π Challenge also leads on iOS requirement (13.0 vs 15.1). 3.14 Master Pi's advantage is update cadence (every 2 months vs every 9 months). On price, ads and device support 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. 3.14 Master Pi sells 5 one-off in-app purchases. π Challenge asks for nothing beyond the download.
π Challenge ships an update every 9 months, 3.14 Master Pi every 2 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.
| Parameter | π Challenge | 3.14 Master Pi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 29 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Warashibe Tech LLC | David Brown |
In-app purchases
π Challenge
No in-app purchases
3.14 Master Pi
- Summation Supporter$2.99
- Premium (Lifetime)$4.99
- Radical Patron$9.99
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- Infinite Supporter$29.99
- Pi Master$99.99





