Rectangles & Primes vs CheckPrimeNumbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rectangles & Primes
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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.
CheckPrimeNumbers
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Input numbers into this app to find out if the numbers are prime or not. The app also displays all the factors of the input numbers.
Screenshots
Verdict
The clearest difference is price: Rectangles & Primes at Free against CheckPrimeNumbers's $0.99. On ads, in-app purchases, device support and iOS requirement 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
Rectangles & Primes is free to download; CheckPrimeNumbers costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Rectangles & Primes | CheckPrimeNumbers |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Charra | Sreekanth Parigela |
In-app purchases
Rectangles & Primes
No in-app purchases
CheckPrimeNumbers
No in-app purchases
Questions
Is Rectangles & Primes free?
Is CheckPrimeNumbers free?
Do Rectangles & Primes or CheckPrimeNumbers have ads?
Other comparisons
