# Add Up Fast - Subtraction Math — 15 Seconds to Test Your Brain > Fast-paced math game for quick brain training. (iPhone/iPad app by Arch Square.) - Source: https://appshunter.io/ios/app/add-up-fast-subtraction-math/id1021120446 (this page in markdown: same URL + `.md`) - Developer: [Arch Square](https://appshunter.io/developer/432278777) - Category: Entertainment, Games, Board, Puzzle - Price: Free with in-app purchases - Rating: 3.70/5 from 6 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 12 MB - Languages: American English - Released: 2015-08-01 - Data updated: 2026-06-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/add-up-fast-subtraction-math/id1021120446/reviews.md ## What is Add Up Fast? 15 seconds of speed math to boost your brain power. The rules are simple: Tap the right answer for the equation. Players have 15 seconds to get as many questions right as possible. The questions get progressively hard as more questions appears. 4 GAME MODES: ------------------------------ 1) Addition 2) Subtraction 3) Multiplication 4) Division ## Key features - 15-second speed challenges - Tap correct answer for equations - Progressively difficult questions - Four game modes: Addition, Subtraction, Multiplication, Division ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pack to Unlock All Game Modes | $1.99 | one-time | | Pack to Remove Ads | $1.99 | one-time | | Pack of 250 Tokens | $0.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/add-up-fast-subtraction-math/id1021120446/reviews.md ### 5/5 — Thinking exercise *2016-06-02* This is a great way to start your day. Like a vitamin, this program help speed up your reaction time, that is your nutrition for building up the mind. It's timed,and it gives you a score that you can improve. ## Frequently asked questions about Add Up Fast ### What is Add Up Fast? Add Up Fast is a free mobile game designed for quick brain training through math challenges. It offers four game modes: Addition, Subtraction, Multiplication, and Division. ### How long does a game session last in Add Up Fast? Each game session in Add Up Fast is limited to 15 seconds, focusing on speed and accuracy in solving math equations. ### Does Add Up Fast have ads? No, Add Up Fast does not contain advertisements, providing an uninterrupted gaming experience. ### What devices is Add Up Fast available on? Add Up Fast is available on iPhone, iPad, and iPod devices. ### What is the age rating for Add Up Fast? Add Up Fast has an age rating of 4+, making it suitable for young children and older users alike. ### How often is Add Up Fast updated? The latest version of Add Up Fast was released on October 26, 2018. While updates may not be frequent, the core gameplay remains consistent. ### What is the user feedback like for Add Up Fast? Add Up Fast has an average rating of 3.7 stars from 6 ratings, indicating a generally positive but mixed user reception. ### Can I play Add Up Fast offline? The provided information does not specify offline play capabilities for Add Up Fast. However, as a math game, it is likely playable without an internet connection. ## Version history (last 2 releases) ### 3.1 — 2018-10-26 Update graphics UI for new version of iOS 12 ### 1.0 — 2015-07-27 No release notes. ## Apps similar to Add Up Fast | App | Rating | Price | Category | | --- | --- | --- | --- | | [Kvikmyndir.is](https://appshunter.io/ios/app/kvikmyndiris/id1191288272) | 3.7 (3) | Free | Entertainment | | [Sticker Tools](https://appshunter.io/ios/app/sticker-tools/id1125811820) | 4.1 (29) | Free | Entertainment | | [Baby Magic Touch](https://appshunter.io/ios/app/baby-magic-touch/id583714595) | 3.2 (5) | Free | Entertainment | | [Siki.io](https://appshunter.io/ios/app/sikiio/id1564875912) | 4.4 (27) | Free | Entertainment | | [DramaFlicks: Short Drama & TV](https://appshunter.io/ios/app/dramaflicks-short-drama-and-tv/id6743202489) | 4.9 (11) | Free | Entertainment | | [What's My Age? Magic](https://appshunter.io/ios/app/whats-my-age-magic/id418671865) | 3.9 (7) | Free | Entertainment | ## More apps by Arch Square - [Cheesar](https://appshunter.io/ios/app/cheesar/id533221949) - [Cheesar HD](https://appshunter.io/ios/app/cheesar-hd/id545929308) - [Abby Phonics - First Grade Free Lite](https://appshunter.io/ios/app/abby-phonics-first-grade-free-lite/id587856254) - [Add 60 Seconds for Brain Power - Subtraction Lite Free](https://appshunter.io/ios/app/add-60-seconds-for-brain-power-subtraction-lite-free/id1004268083) - [Add Up Fast - Addition](https://appshunter.io/ios/app/add-up-fast-addition/id1018127286) All apps by Arch Square: https://appshunter.io/developer/432278777 --- *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 2026-06-03.*