Rectangles & Primes
Johannes Charra Education iPhoneiPadiPod touch
Rectangles & Primes is a free Education app for iPhone and iPad by Johannes Charra. Requires iOS 15.0. Updated July 30, 2026.
- Price
- Free
- on the App Store
- Size
- 10 MB
- Age 4+
- Updated
- Jul 30
- 2026 · v1.14
Screenshots
About Rectangles & Primes
Rectangle provides a fun and insightful maths experience for kids aged 6 to 12. They will improve their understanding of number factorization and prime numbers.
What’s new
Version 1.14 · Updated July 30, 2026
Interne Verbesserungen, moderner Software-Stack
App privacy
The developer, Johannes Charra, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Rectangles & Primes
Looking for apps like Rectangles & Primes? Here are 6 similar apps on the App Store. The highest rated is Find Prime Num (5.0/5), and 4 of the 6 are free to download.
-
Prime Factorization Deluxe
1.0
-
Prime Numbers Math Games
3.0
-
Find Prime Num
5.0
-
Prime Not Prime
4.3
-
The Prime Number Finder
5.0
-
CheckPrimeNumbers
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Rectangles & Primes | – | Free | July 30, 2026 | |
| Prime Factorization Deluxe | 1.0 / 5 (1) | 1.99 USD | Jun 26, 2024 | Compare |
| Prime Numbers Math Games | 3.0 / 5 (2) | Free | May 8, 2026 | Compare |
| Find Prime Num | 5.0 / 5 (1) | Free | Mar 23, 2025 | Compare |
| Prime Not Prime | 4.3 / 5 (6) | Free | Aug 11, 2026 | Compare |
| The Prime Number Finder | 5.0 / 5 (2) | Free | Feb 23, 2026 | Compare |
| CheckPrimeNumbers | – | 0.99 USD | Sep 4, 2024 | Compare |