# Add Up Fast - Addition — 15 Seconds to Test Your Brain > Timed math challenges to improve calculation speed and brain power. (iPhone/iPad app by Arch Square.) - Source: https://appshunter.io/ios/app/add-up-fast-addition/id1018127286 (this page in markdown: same URL + `.md`) - Developer: [Arch Square](https://appshunter.io/developer/432278777) - Category: Entertainment, Games, Puzzle, Strategy - Price: Free with in-app purchases - Rating: 4.00/5 from 6 App Store ratings - Age rating: 4+ - Requires: iOS 9.0 · 12 MB - Languages: American English - Released: 2015-07-18 - Data updated: 2026-06-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/add-up-fast-addition/id1018127286/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 timed challenges - Four game modes: Addition, Subtraction, Multiplication, Division - Progressively difficult questions - Tap to select the correct answer - Boost brain power ## 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 | ## Frequently asked questions about Add Up Fast ### What is Add Up Fast? Add Up Fast is a free mobile game designed to test and improve your mental math skills. It offers timed challenges where you quickly tap the correct answer to equations. ### How long are the game sessions in Add Up Fast? Each game session in Add Up Fast lasts for exactly 15 seconds, focusing on speed and quick decision-making to solve as many math problems as possible. ### What math operations can I practice in Add Up Fast? Add Up Fast features four distinct game modes: Addition, Subtraction, Multiplication, and Division, allowing you to practice a variety of fundamental arithmetic operations. ### Does Add Up Fast have ads? No, Add Up Fast does not contain advertisements. It is a free application that may offer in-app purchases. ### What devices is Add Up Fast available on? Add Up Fast is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### 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 adults alike who wish to practice basic math skills. ### How often is Add Up Fast updated? The latest version of Add Up Fast was released on September 24, 2018. While it has not been updated recently, it remains a functional and engaging math practice tool. ### What do users think of Add Up Fast? Based on available data, Add Up Fast has a rating of 4.0 stars from 6 ratings, indicating a generally positive reception from its user base. ## Version history (last 2 releases) ### 3.0 — 2018-09-24 Refreshed design and Updated for iOS 11 ### 1.0 — 2015-07-17 No release notes. ## Apps similar to Add Up Fast | App | Rating | Price | Category | | --- | --- | --- | --- | | [WTGR Radio](https://appshunter.io/ios/app/wtgr-radio/id1023857857) | — | Free | Entertainment | | [Good Morning Brithday GIFs](https://appshunter.io/ios/app/good-morning-brithday-gifs/id6608971136) | 3.9 (8) | Free | Entertainment | | [Kvikmyndir.is](https://appshunter.io/ios/app/kvikmyndiris/id1191288272) | 3.7 (3) | Free | Entertainment | | [PetPon](https://appshunter.io/ios/app/petpon/id6575386506) | — | Free | Entertainment | | [Smart Kids Brain Training](https://appshunter.io/ios/app/smart-kids-brain-training/id1567680492) | — | Free | Entertainment | | [Morse Code Translator!](https://appshunter.io/ios/app/morse-code-translator/id6742086747) | — | 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 - Subtraction Math](https://appshunter.io/ios/app/add-up-fast-subtraction-math/id1021120446) 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.*