π ~ Pi Fun App. vs π Challenge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
π ~ Pi Fun App.
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This app is the ultimate app for unique people who love maths. The start-up screen plays pi to a million digits in an emo atmosphere, perfect for relaxing. Furthermore, there is a game where you can quickly enter pi for every 10, 100, 1000 - 1,000,000 digits and compete against players from all over the world for the best time! Enjoy a new entertainment experience that combines mathematics and relaxation!
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!
Screenshots
Verdict
The clearest difference is ads: π Challenge at none against π ~ Pi Fun App.'s shown. π Challenge also leads on iOS requirement (13.0 vs 17.0). π ~ Pi Fun App.'s advantage is update cadence (daily vs every 9 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
π ~ Pi Fun App. ships an update daily, π Challenge every 9 months. The most recent releases landed on September 6, 2026 and September 24, 2026 respectively.
| Parameter | π ~ Pi Fun App. | π Challenge |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Tsudukihashi | Warashibe Tech LLC |
In-app purchases
π ~ Pi Fun App.
No in-app purchases
π Challenge
No in-app purchases
Questions
Is π ~ Pi Fun App. free?
Is π Challenge free?
Do π ~ Pi Fun App. or π Challenge have ads?
Which is updated more often, π ~ Pi Fun App. or π Challenge?
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