# Rectangles & Primes vs Pi

The clearest difference is update cadence: Pi at every 2 days against Rectangles & Primes's every 3 weeks. Rectangles & Primes's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rectangles & Primes ships an update every 3 weeks, Pi every 2 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Rectangles & Primes | Pi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 10 MB | 4 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Charra](https://appshunter.io/developer/1557733427) | [Olivier Mallet](https://appshunter.io/developer/1884261967) |

## What reviewers say

### Rectangles & Primes

[App page](https://appshunter.io/ios/app/rectangles-and-primes/id1572074176)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pi

[App page](https://appshunter.io/ios/app/pi-infinite-digits/id6760476465)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rectangles & Primes free?

Rectangles & Primes is free to download, with no in-app purchases.

### Is Pi free?

Pi is free to download, with no in-app purchases.

### Do Rectangles & Primes or Pi have ads?

Neither Rectangles & Primes nor Pi shows ads.

### Which is updated more often, Rectangles & Primes or Pi?

Rectangles & Primes ships an update every 3 weeks, and Pi every 2 days. Most recently, Rectangles & Primes was updated on October 2, 2026 and Pi on October 10, 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.*