# Remember 3.1415 vs Circle Shrink by Theze

The clearest difference is in-app purchases: Circle Shrink by Theze at none against Remember 3.1415's 1. Circle Shrink by Theze also leads on update cadence (monthly vs every 64 months). Remember 3.1415's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Remember 3.1415 sells 1 one-off in-app purchase. Circle Shrink by Theze asks for nothing beyond the download.

Remember 3.1415 ships an update every 64 months, Circle Shrink by Theze monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Remember 3.1415 | Circle Shrink by Theze |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/remember-31415/id985688958/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 64 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [杨军 朱](https://appshunter.io/developer/564474259) | [Rishi Kumar](https://appshunter.io/developer/1885345558) |

## What reviewers say

### Remember 3.1415

[App page](https://appshunter.io/ios/app/remember-31415/id985688958)

Challenge your math and logic skills with this game that tests your ability to recall digits of Pi. Compete against the clock in various timed modes or an endless challenge. AI provides helpful tips to improve your input speed and accuracy.

**Highlights:** Over 1 million digits of Pi, Multiple timed game modes, Endless challenge mode, AI-powered input tips, Game over on time or error

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Pro Version | $0.99 | one-time |


### Circle Shrink by Theze

[App page](https://appshunter.io/ios/app/circle-shrink-by-theze/id6760819652)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Remember 3.1415 free?

Remember 3.1415 is free to download, with in-app purchases available.

### Is Circle Shrink by Theze free?

Circle Shrink by Theze is free to download, with no in-app purchases.

### Do Remember 3.1415 or Circle Shrink by Theze have ads?

Circle Shrink by Theze shows ads; Remember 3.1415 does not.

### Which is updated more often, Remember 3.1415 or Circle Shrink by Theze?

Remember 3.1415 ships an update every 64 months, and Circle Shrink by Theze monthly. Most recently, Remember 3.1415 was updated on November 6, 2026 and Circle Shrink by Theze on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*