246+ iOS apps & games curated and reviewed
The Prime Numbers App is the household name in prime numbers, but it's far from the only option. We track 246+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (48) | No | No | Sep 2026 | |
| 2 |  | Free | — | Yes | Yes | Jul 2026 | |
| 3 |  | $0.99 | 3.9★ (24) | No | No | Aug 2026 | |
| 4 |  | $4.99 | 4.7★ (19) | No | No | Oct 2026 | |
| 5 |  | Free | 4.9★ (31) | No | No | Jul 2026 | |
| 6 |  | Free | 5.0★ (3) | No | No | May 2026 | |
| 7 |  | Free | — | Yes | No | May 2026 | |
| 8 |  | Free | 5.0★ (2) | No | No | May 2026 |
This app helps you explore prime numbers. You can quickly determine if a number is prime, find the next prime number, or generate a list of primes within a range. It also includes a feature to test your device's processing speed by searching for prime numbers.
Explore numbers up to one trillion, with primes clearly marked. Tap any number to reveal its prime factors. Easily navigate to specific numbers using the search function and adjust the display with pinch-to-zoom gestures.
