π Pi Challenge vs Pi Sequence
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
π Pi Challenge
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An app for memorizing the digits of Pi. It supports up to 30 million digits… totally unnecessary, but fun. Comes with a ranking feature! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Pi Sequence
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Pi Sequence: Memorize Pi helps you train your memory by practicing the digits of pi in a simple, focused way. Practice number sequences, test your recall, and build your ability to remember more digits over time. Whether you are learning the first few digits of pi or challenging yourself to go further, Pi Sequence gives you a clean space to practice, repeat, and improve. Features: • Practice pi digit sequences • Test your memory and recall accuracy • Find your birthday in the digits of pi • Track your progress as you memorize more digits • Challenge yourself with focused number memory training • Simple, distraction-free experience Pi Sequence Pro: Unlock unlimited practice and memory challenges. Terms of Use: https://gobefar.com/pisequence/terms Privacy Policy: https://gobefar.com/pisequence/privacy
Screenshots
Verdict
The clearest difference is ads: Pi Sequence at none against π Pi Challenge's shown. π Pi Challenge's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, 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. π Pi Challenge sells 1 in-app purchase, starting at $0.99 per month and Pi Sequence sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
π Pi Challenge ships an update every 2 months, Pi Sequence every 3 months. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.
| Parameter | π Pi Challenge | Pi Sequence |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 73 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | SIC Company Limited | 晓灵 潘 |
In-app purchases
π Pi Challenge
- Monthly Subscription$0.991 Month
Pi Sequence
- Unlock Pro$3.99
Questions
Is π Pi Challenge free?
Is Pi Sequence free?
Do π Pi Challenge or Pi Sequence have ads?
Which is updated more often, π Pi Challenge or Pi Sequence?
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