# Pryme > Generates prime numbers, palindrome primes, and prime number counts. (iPhone/iPad app by Yisrael Hersch.) - Source: https://appshunter.io/ios/app/pryme/id955013440 (this page in markdown: same URL + `.md`) - Developer: [Yisrael Hersch](https://appshunter.io/developer/6818432436) - Category: Utilities, Reference - Price: Free - Rating: 4.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 1 MB - Languages: American English - Released: 2015-01-17 - Data updated: 2026-10-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/pryme/id955013440/reviews.md ## What is Pryme? Handy prime number generator. The "y" in ℙryme is because my wife asked me "why" I'm writing this silly app. My reason is that I find a certain fascination in prime numbers and wanted an easy way to play with them. Definition: A prime number is a positive integer, greater than 1, that has exactly two positive integer factors, 1 and itself. ℙryme quickly generates and lists prime numbers, up to the maximum number specified by the user (program default is 1,000,000). A separate list of palindrome prime numbers can also be displayed. The column on the left indicates the difference between the prime number and its predecessor. The right column is a running number which numbers the prime numbers and lets the user see how many prime numbers there are up to a certain number (for example, there are 167 prime numbers before the number 1000). Now doesn't that just make life worth living? ## Key features - Prime number generation - User-defined maximum number - Palindrome prime number list - Prime number difference display - Prime number count tracking ## Is Pryme safe? Not enough ratings yet to assess Pryme. ## Is Pryme legit? Pryme appears to be a legitimate app. The AppsHunter Legitimacy Score for Pryme is 83 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/pryme/id955013440/reviews.md ### 4/5 — Error *2017-01-24* There is no 5, 5 is prime. ### 1/5 — Oops *2015-11-27* What happened to the prime number 5? This makes all the distances between primes wrong starting with 7. Makes me wonder how many more primes are missing from the list... ## Frequently asked questions about Pryme ### What is the maximum number Pryme can generate primes up to? Pryme can generate prime numbers up to a maximum of 1,000,000 by default. Users can specify a different maximum number if desired. ### Does Pryme show palindrome prime numbers? Yes, Pryme offers a separate list that displays palindrome prime numbers. This feature allows users to explore a specific subset of primes. ### What kind of information does Pryme provide about prime numbers? Pryme lists prime numbers, shows the difference between consecutive primes, and provides a running count of how many primes exist up to a certain number. ### Is Pryme available on Android devices? Based on the provided data, Pryme is supported on iPhone and iPad. Information regarding Android compatibility is not available. ### How often is Pryme updated? The latest version of Pryme was released on January 4, 2017. The app has not received an update since then, indicating infrequent updates. ### What is the user rating for Pryme? Pryme has a rating of 4.0 stars based on 1 rating. This indicates a generally positive reception from its limited user base. ### Does Pryme have ads? No, Pryme does not contain advertisements. The app is free to use without any ad interruptions. ### What is the age rating for Pryme? Pryme has an age rating of 4+. This means it is suitable for children aged 4 and above. ## Version history (last 5 releases) ### 3.3.3.17 — 2026-10-23 UI adjustments. ### 2.3.3.13 — 2017-01-04 Fixed an issue with iOS which caused the app to crash. ### 2.2.3.11 — 2015-03-04 • Changed the tlist of prime numbers to start from 2, instead of 0, which conforms to the commonly accepted definition of prime numbers. • Corrected the version number of the app to use "true" prime numbers, that is, numbers greater than 1. ### 2.0.1.7 — 2015-02-12 • Lists palindrome prime numbers • Maximum number set on main screen ### 1.0.1.5 — 2015-02-04 • Greatly optimized - faster prime generation allows larger lists. • Reports if not enough memory available to generate requested list. ## More apps by Yisrael Hersch - [Prutah](https://appshunter.io/ios/app/prutah/id1000522129) All apps by Yisrael Hersch: https://appshunter.io/developer/6818432436 ## Related topics [pryme](https://appshunter.io/ios/topics/pryme) · [primeself](https://appshunter.io/ios/topics/primeself) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*