# Ninimaths — Mental arithmetic exercises > Mental arithmetic training app with multiple calculation modes and progress tracking. (iPhone/iPad app by Ninicode.) - Source: https://appshunter.io/ios/app/ninimaths/id647989498 (this page in markdown: same URL + `.md`) - Developer: [Ninicode](https://appshunter.io/developer/647989501) - Category: Education, Games, Board, Family - Price: Free with in-app purchases - Rating: 4.90/5 from 45 App Store ratings · 114 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 11 MB - Languages: Korean, American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Thai - Released: 2013-05-21 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/ninimaths/id647989498/reviews.md ## What is Ninimaths? Ninimaths is an application to train mental arithmetic ability. Characteristic: - Selection from 5 modes of calculation, addition, subtraction, multiplication, division, mixing - 1 to 5 digit numbers can be freely combined - Corresponds to display in the column format - Daily scores are recorded for each mode and displayed on the graph - Ranking function by Game Center - Time trial to measure strictly ## Key features - Multiple calculation modes (add, subtract, multiply, divide, mix) - Customizable number ranges (1-5 digits) - Column display format - Daily score recording and graphing - Game Center ranking - Time trial mode ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Coffee | $0.99 | one-time | | Hamburger | $1.99 | one-time | | Ramen | $4.99 | one-time | ## Recent user reviews (10 of 114) All indexed reviews: https://appshunter.io/ios/app/ninimaths/id647989498/reviews.md ### 5/5 — Great, really helpful *2026-08-18* Amazing game. Really helping me with quick calculations and I think it’s so beneficial for me. Thank you!! ### 5/5 — PLEASE DOWNLOAD!! *2026-08-07* I am in love with the simple interface as it means you can focus on the maths. As someone who studied (and enjoys) math I always want to sharpen my basic skills - this app is perfect for that. It’s worth your time (and I think it’s really fun too) ### 5/5 — Mom says *2026-07-30* Mom says ### 5/5 — Super ! *2026-07-12* Un app simple qui permet de faire du calcul mental. Intuitif et sans pub ni achat. App vivement recommandé ### 5/5 — Wow *2026-07-08* Quick easy way to practice mental maths. ### 5/5 — 제작자님 감사합니다. *2026-07-08* 깔끔하고 광고도 없어서 편리하고 유용한 것 같아요. 흐름이 끊기지 않아서 좋은 것도 있고요. 근데 다른 기능도 추가되면 좋겠네요. 무슨 기능인지는 생각해본적 없지만요.. 아무튼 잘 쓰고 있습니다. 화이팅하세요! ### 5/5 — 키보드 눌리는게 기분이 좋네요 *2026-06-29* 내신 수학 시험보기 전에 좀 했는데 암산이 134% 빨라져 버려서 미적분 97점 맞았네요 그리고 키보드 누르는 느낌이 아주 좋습니다 ### 5/5 — Excellent *2026-06-21* Superbe interface, prise en main très simple et beaucoup de mode d’entrainement ### 5/5 — Amazing *2026-06-16* It's a minimalistic designed app with individual settings. No advertisements, only fun ### 5/5 — cool *2026-06-15* good for helping mental maths would recommend ## Frequently asked questions about Ninimaths ### What is Ninimaths? Ninimaths is an application designed to help users train and improve their mental arithmetic abilities. It offers various calculation modes and features to make practice engaging and effective. ### What calculation modes are available? The app provides five distinct calculation modes: addition, subtraction, multiplication, division, and a mixed mode. Users can also freely combine numbers ranging from 1 to 5 digits for their exercises. ### How does Ninimaths track progress? Daily scores for each calculation mode are recorded and displayed on a graph, allowing users to visualize their improvement over time. The app also includes a time trial feature to measure performance under pressure. ### Is Ninimaths free to use? The application is free to download and use, with the option for in-app purchases. This allows users to access additional features or content if they choose. ### Can I compete with other users? Yes, Ninimaths features a ranking function that integrates with Game Center. This allows users to compare their scores and compete with others, adding a competitive element to their mental arithmetic training. ## Version history (last 5 releases) ### 4.5.8 — 2025-09-12 Regular improvements to keep the app working properly. ### 4.5.7 — 2024-09-30 Support for iOS 18. ### 4.5.6 — 2024-04-06 Regular improvements to keep the app working properly. ### 4.5.5 — 2023-10-29 Regular improvements to keep the app working properly. ### 4.5.4 — 2023-05-09 Regular improvements to keep the app working properly. ## Apps similar to Ninimaths | App | Rating | Price | Category | | --- | --- | --- | --- | | [Mental Math Speed Trainer](https://appshunter.io/ios/app/mental-math-speed-trainer/id6476421167) | 4.3 (4) | Free | Education | | [毎日 脳トレ - 1日5分で脳の診断ができるパズルゲーム](https://appshunter.io/ios/app/15/id1579132658) | 4.6 (192) | Free | Education | | [高校数学](https://appshunter.io/ios/app/id6450528035) | — | Free | Education | | [Daily Brain Training](https://appshunter.io/ios/app/daily-brain-training/id1088644441) | 4.6 (92) | Free | Education | | [Calculation Training For Brain](https://appshunter.io/ios/app/calculation-training-for-brain/id1159243202) | 4.4 (14) | Free | Education | | [100 Squares Calc](https://appshunter.io/ios/app/100-squares-calc/id534131439) | 4.9 (8) | Free | Education | ## More apps by Ninicode - [Catch the Soft Serve](https://appshunter.io/ios/app/catch-the-soft-serve/id500544338) - [Ninihex](https://appshunter.io/ios/app/ninihex/id665700343) - [Dicerase](https://appshunter.io/ios/app/dicerase/id861101891) - [3n or Not](https://appshunter.io/ios/app/3n-or-not/id913003589) - [Cracky Hatchery](https://appshunter.io/ios/app/cracky-hatchery/id942306415) All apps by Ninicode: https://appshunter.io/developer/647989501 ## Related topics [super easy calcs](https://appshunter.io/ios/topics/super-easy-calcs) · [avmath](https://appshunter.io/ios/topics/avmath) · [nehal dantwala](https://appshunter.io/ios/topics/nehal-dantwala) · [mental arithmetic math](https://appshunter.io/ios/topics/mental-arithmetic-math) · [arithmetix](https://appshunter.io/ios/topics/arithmetix) · [mental math](https://appshunter.io/ios/topics/mental-math) · [synthesis24](https://appshunter.io/ios/topics/synthesis24) --- *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 2026-09-01.*