# Rectangles & Primes vs D'ANGELO

The clearest difference is update cadence: Rectangles & Primes at every 3 weeks against D'ANGELO's every 30 months. Rectangles & Primes also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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, D'ANGELO every 30 months. The most recent releases landed on September 15, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Rectangles & Primes | D'ANGELO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 30 months |
| Size | 10 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Charra](https://appshunter.io/developer/1557733427) | [SYNCRONHUB INTERNATIONAL LLC](https://appshunter.io/developer/1503642470) |

## What reviewers say

### Rectangles & Primes

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

**Features:** macOS Compatibility

**In-app purchases:** none


### D'ANGELO

[App page](https://appshunter.io/ios/app/dangelo/id1583538669)

**In-app purchases:** none


## Frequently asked questions

### Is Rectangles & Primes free?

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

### Is D'ANGELO free?

D'ANGELO is free to download, with no in-app purchases.

### Do Rectangles & Primes or D'ANGELO have ads?

Neither Rectangles & Primes nor D'ANGELO shows ads.

### Which is updated more often, Rectangles & Primes or D'ANGELO?

Rectangles & Primes ships an update every 3 weeks, and D'ANGELO every 30 months. Most recently, Rectangles & Primes was updated on September 15, 2026 and D'ANGELO on September 16, 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.*