Rectangles & Primes vs NSOperation
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.
NSOperation
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Your radar for iOS programming developments
Screenshots
Verdict
The clearest difference is device support: Rectangles & Primes at 3 against NSOperation's 1. Rectangles & Primes also leads on iOS requirement (15.0 vs 18.2). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Rectangles & Primes | NSOperation |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 10 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Charra | Daniel Romero |
In-app purchases
Rectangles & Primes
No in-app purchases
NSOperation
No in-app purchases
Questions
Is Rectangles & Primes free?
Is NSOperation free?
Do Rectangles & Primes or NSOperation have ads?
Other comparisons
