# i*PRiMES: Number Puzzle — Meet the atoms of mathematics > Minimalist number puzzle game to improve math skills and cognitive abilities. (iPhone/iPad app by Dean Longmore.) - Source: https://appshunter.io/ios/app/iprimes-number-puzzle/id1439286127 (this page in markdown: same URL + `.md`) - Developer: [Dean Longmore](https://appshunter.io/developer/984963696) - Category: Games, Education, Puzzle, Trivia - Price: Free - Rating: 5.00/5 from 4 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 64 MB - Languages: English - Released: 2020-02-10 - Data updated: 2026-06-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/iprimes-number-puzzle/id1439286127/reviews.md ## What is i*PRiMES? Relax and strengthen your brain with i*PRiMES. Have you ever mastered a puzzle game, and realised all that understanding and those skills can't be applied to anything else in life?? I'm looking at you The Witness! Mastering i*PRiMES means mastering math. i*PRiMES is the puzzle game that improves your ability to work with numbers in your day to day life. Improve your number literacy while enjoying this minimalist puzzle game. Relax and entertain yourself with bitesize gameplay, while building cognitive skills that will help you in life outside of the game. 3 - No timers, no pressure. Complete each puzzle at your own pace. 5 - Improve your mathematics skills and your ability to work with numbers. 7 - GameCentre scoreboards, how well do you know your numbers? 11 - Endless gameplay, your skills and mastery are the limit. This game is free. There are no ads or in app purchases. Reviews & sharing with your friends, children, or math teachers is very much appreciated. Thanks for playing! ## Key features - Brain strengthening puzzles - Improves number literacy - Bitesize gameplay - No timers or pressure - Endless gameplay - GameCentre scoreboards ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/iprimes-number-puzzle/id1439286127/reviews.md ### 5/5 — I’m at 501!! (03/27/2025) *2025-03-27, version 1.01* This game is nice, one day I can make it to 10000! And so many primes to collect, but when you go over 20000 primes, it may lag, but amazing game! ### 5/5 — Never mind I’m at 10948 *2022-05-29, version 1.01* ⭐️⭐️⭐️⭐️⭐️⭐️ ### 5/5 — Mathematics *2022-04-15, version 1.01* 2 and 2 make 4 you did it 👍 ### 5/5 — * *2020-02-14, version 1.0* Simple and super clean design. Fairly basic principles but gets complex very quickly. Great time killer with the benefit of keeping the brain sharp. ### 5/5 — Learning is fun *2020-02-14, version 1.0* An awesome app to get the brain going. Tricked me into enjoying math. ### 5/5 — Charming Maths Puzzler *2020-02-12, version 1.0* A minimalist, charming maths game that it only helps improve fundamental maths skills but also helps you understand amazing maths principles! ### 5/5 — A puzzle game that improves your maths! *2020-02-11, version 1.0* I really like this puzzle game but I also made it, so I might say that! If you want to see more positive, wholesome and maybe useful content like this - let me know on Twitter! @dlldlldlldll ### 5/5 — Brain Training *2020-02-11, version 1.0* This game is brilliant and has a similar 'morning brain ritual' feeling as the training games on DS and Vita. Always feel more switched on after a quick play (and reminded I need to brush up on my maths!) ## Frequently asked questions about i*PRiMES ### What is i*PRiMES? i*PRiMES is a minimalist puzzle game designed to improve your number literacy and cognitive skills. It offers bite-sized gameplay without timers, allowing you to relax and strengthen your brain. ### Is i*PRiMES free to play? Yes, i*PRiMES is completely free to play. The developer has stated there are no ads or in-app purchases. ### Does i*PRiMES have ads? No, i*PRiMES is ad-free. The developer explicitly mentioned there are no advertisements in the game. ### What devices does i*PRiMES support? i*PRiMES is supported on iPhone, iPad, and iPod devices. ### What is the age rating for i*PRiMES? The age rating for i*PRiMES is 4+. ### How often is i*PRiMES updated? The latest version of i*PRiMES is 1.01, which was last updated on February 20, 2020. The initial release date was February 10, 2020. ### Can I play i*PRiMES offline? The provided information does not specify if i*PRiMES can be played offline. However, given its puzzle nature and lack of mention of online features, it is likely playable without an internet connection. ### Does i*PRiMES have multiplayer modes? i*PRiMES features GameCentre scoreboards, allowing you to compare your scores with others. However, there is no mention of direct multiplayer gameplay modes. ## Version history (last 2 releases) ### 1.01 — 2020-02-20 GameCentre leaderboards are now active! To everyone playing so far, you really know how to times your primes! Complete your next number to find out where you are in the world ranks - good luck! ### 1.0 — 2020-02-11 No release notes. ## More apps by Dean Longmore - [Stack Islands](https://appshunter.io/ios/app/stack-islands/id1407146596) - [Emoji World: Word Puzzle Game!](https://appshunter.io/ios/app/emoji-world-word-puzzle-game/id1556961658) - [Four Numbers: Relax with Maths](https://appshunter.io/ios/app/four-numbers-relax-with-maths/id1573530559) - [Treegaze Cove: Match & Craft](https://appshunter.io/ios/app/treegaze-cove-match-and-craft/id1608833122) All apps by Dean Longmore: https://appshunter.io/developer/984963696 --- *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 2026-06-11.*