This app helps users explore the fascinating world of prime numbers. It allows you to check if a number is prime, find its factors, and discover nearby primes. You can also analyze ranges of numbers for primes and twin primes.



246+ iOS apps & games curated and reviewed
Prime Cracker 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 | 4.9★ (31) | No | No | Jul 2026 | |
| 2 | $4.99 | 4.7★ (19) | No | No | Aug 2026 | |
| 3 | Free | 4.7★ (48) | No | No | Aug 2026 | |
| 4 | Free | 5.0★ (3) | No | No | May 2026 | |
| 5 | Free | 4.5★ (11) | Yes | No | May 2026 | |
| 6 | Free | 5.0★ (2) | No | No | May 2026 | |
| 7 | Free | 3.0★ (2) | No | No | May 2026 | |
| 8 | Free | 2.0★ (1) | Yes | No | May 2026 |



This app helps users explore the fascinating world of prime numbers. It allows you to check if a number is prime, find its factors, and discover nearby primes. You can also analyze ranges of numbers for primes and twin primes.






Explore prime numbers with a suite of offline tools. Check primality, list primes in a range, and perform factorization. Generate custom random primes and even test phone speed.




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.


This app performs advanced mathematical calculations for numbers, including integer factorization, Euler's totient function, and solving specific Diophantine equations. It utilizes advanced algorithms for factorization and primality testing.


Practice identifying prime numbers through an engaging game. Tap for primes and swipe for non-primes, which then decompose into a snake-like sequence. Compete globally for the highest score.


This app is a powerful tool for exploring prime numbers, offering instant primality checks, factorization, and navigation through prime sequences. It features an interactive interface with dark mode and offline functionality, perfect for students, teachers, and math enthusiasts.


This app offers interactive lessons and games to help users learn and practice prime numbers, HCF, and LCM. It provides clear explanations, timed challenges, and adjustable difficulty levels for focused math revision and skill-building.


Test your knowledge of prime numbers in this engaging math game. Quickly identify whether displayed numbers are prime or not to increase your score and deepen your understanding of mathematical concepts. Enjoy an endless challenge with a simple interface designed for fun and learning.


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.


Practice identifying prime numbers by swiping. Collect cute characters associated with prime numbers and compete for high scores on a global leaderboard. Learning math can be fun and engaging.






This utility app breaks down integers into their prime factors. It also calculates the number and sum of divisors, lists all divisors, and identifies specific number types like prime, perfect, abundant, or deficient.




A straightforward game where players tap prime numbers as they appear. It's designed for quick play sessions and introduces users to a list of prime numbers. The game includes Game Center integration for leaderboards.


Create intricate mandala designs using the unique mathematical concept of prime numbers. Explore a creative outlet that combines art and number theory.




Explore and view the digits of all known Mersenne prime numbers. Witness the generation process for extremely large primes, page by page, and locate specific digits by their sequence number.




A fast-paced game that combines number recognition with a swiping mechanic. Players swipe right for prime numbers and left for non-primes, aiming to build long streaks. It's designed to be both educational and entertaining, with leaderboards for competitive play.