--- title: "iAddThree - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Train your brain and improve your focus with the simple yet challenging math game, iAddThree. Adapted from an exercise that was used to measure cognitive focus in the popular book Thinking Fast and " --- # iAddThree — United States > Easy Cognitive Training ![iAddThree App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/23/15/ef/2315ef17-9d9a-2415-ebe6-63bd98944e69/AppIcon-0-0-1x_U007epad-0-85-220.png/400x400bb.png) **Developer:** [Nikolai Nobadi](https://apptail.io/developer/nikolai-nobadi-FuXc) **Category:** Games **Rating:** 5.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.nobadi.AddThree **Store:** Apple App Store **Country:** United States **Version:** 3.5.0 (released 2024-01-29) **Original Release:** 2018-06-26 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1389962750) **AppTail Page:** [https://apptail.io/app/iaddthree-ilyj/united-states](https://apptail.io/app/iaddthree-ilyj/united-states) ## iAddThree Description Train your brain and improve your focus with the simple yet challenging math game, iAddThree. Adapted from an exercise that was used to measure cognitive focus in the popular book Thinking Fast and Slow by Daniel Kahneman, iAddThree engages your mind by bending the rules of basic math to give your brain the mental exercise it deserves. THE RULES------------- It's simple. Just add 3 to each of the four numbers that are presented. The challenge? No double digits. Instead, you must wrap around to 0. Normally, 8+3=11, but in iAddThree, 8+3=1. Think of it as a line of numbers that are constantly repeating. 8 -> 9 -> 0 -> 1 -> 2 -> 3. The struggle provided by this simple math game will have you boasting about your high score to all your friends. So, how well do you think you can iAddThree? ## iAddThree Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource122/v4/9d/9d/f9/9d9df94c-4345-18ff-64f2-ecf57b999d20/74e52fd6-b9e9-4e3b-b203-dab08ae0a068_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-09-26_at_19.23.16.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource112/v4/a2/0d/ae/a20dae14-c66f-2a7b-ed3e-a1c3f2ccd502/c1279160-653f-4650-b911-07ac687aec21_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-09-26_at_19.31.05.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource122/v4/d8/56/11/d8561115-58a1-b525-2d8c-5a66729e0c15/2dca4037-1e2e-4450-8873-4075c0fe468a_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-09-26_at_19.24.43.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource112/v4/ef/0b/df/ef0bdf0b-bb3f-65d2-63b2-665e3c8dc07e/d0f23b8a-7f88-48d7-b72d-6c51ec801e03_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-09-26_at_19.25.27.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource122/v4/e5/de/40/e5de40bf-63e3-5b4c-7911-468213a6d8ab/054e431b-27f6-4306-907f-16b1cf09ecc3_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-09-26_at_19.24.52.png/1242x2688.png) ## iAddThree Rating Breakdown in United States - 5 stars: 1 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## iAddThree In-App Purchases | Item | Price | |------|-------| | Remove Ads | $0.99 | ## Apps Similar to iAddThree - [Candy Garden - Go To New Jelly Land 2016](https://apptail.io/app/candy-garden-go-to-new-jelly-land-2016-kzj/united-states) - [The House of Da Vinci 2 Lite](https://apptail.io/app/the-house-of-da-vinci-2-lite-yFv/united-states) - [Blockolot:Win Real Cash](https://apptail.io/app/blockolotwin-real-cash-QGM/united-states) - [Real Logic Riddle Puzzle](https://apptail.io/app/real-logic-riddle-puzzle-ZOnb/united-states) - [Knotwords](https://apptail.io/app/knotwords-vBvc/united-states) - [Daily Crossword Arrow Solo](https://apptail.io/app/daily-crossword-arrow-solo-bNMc/united-states) - [Gibbets: Bow Master](https://apptail.io/app/gibbets-bow-master-mCRc/united-states) - [Mathscapes: Math Brain Algebra](https://apptail.io/app/mathscapes-math-brain-algebra-vWYd/united-states) - [Memree - sharpen your memory](https://apptail.io/app/memree-sharpen-your-memory-VMBe/united-states) - [Pocket Run Pool](https://apptail.io/app/pocket-run-pool-NzRi/united-states) ## iAddThree Available In - [United States](https://apptail.io/app/iaddthree-ilyj/united-states) - [Argentina](https://apptail.io/app/iaddthree-ilyj/argentina) - [Austria](https://apptail.io/app/iaddthree-ilyj/austria) - [Azerbaijan](https://apptail.io/app/iaddthree-ilyj/azerbaijan) - [Belgium](https://apptail.io/app/iaddthree-ilyj/belgium) - [Bahrain](https://apptail.io/app/iaddthree-ilyj/bahrain) - [Belarus](https://apptail.io/app/iaddthree-ilyj/belarus) - [Dominican Republic](https://apptail.io/app/iaddthree-ilyj/dominican-republic) - [Algeria](https://apptail.io/app/iaddthree-ilyj/algeria) - [Ecuador](https://apptail.io/app/iaddthree-ilyj/ecuador) - [Egypt](https://apptail.io/app/iaddthree-ilyj/egypt) - [Hungary](https://apptail.io/app/iaddthree-ilyj/hungary) - [Indonesia](https://apptail.io/app/iaddthree-ilyj/indonesia) - [Ireland](https://apptail.io/app/iaddthree-ilyj/ireland) - [Italy](https://apptail.io/app/iaddthree-ilyj/italy) - [Japan](https://apptail.io/app/iaddthree-ilyj/japan) - [Lebanon](https://apptail.io/app/iaddthree-ilyj/lebanon) - [New Zealand](https://apptail.io/app/iaddthree-ilyj/new-zealand) - [Pakistan](https://apptail.io/app/iaddthree-ilyj/pakistan) - [Portugal](https://apptail.io/app/iaddthree-ilyj/portugal) - [Romania](https://apptail.io/app/iaddthree-ilyj/romania) - [Saudi Arabia](https://apptail.io/app/iaddthree-ilyj/saudi-arabia) - [Sweden](https://apptail.io/app/iaddthree-ilyj/sweden) - [Thailand](https://apptail.io/app/iaddthree-ilyj/thailand) - [Taiwan](https://apptail.io/app/iaddthree-ilyj/taiwan) - [United Arab Emirates](https://apptail.io/app/iaddthree-ilyj/united-arab-emirates) - [South Africa](https://apptail.io/app/iaddthree-ilyj/south-africa) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*