# Brain training:the number line — Win battles with your enemies! > Win battles with your enemies! (iPhone/iPad app by FourM, K.K..) - Source: https://appshunter.io/ios/app/brain-trainingthe-number-line/id1620506179 (this page in markdown: same URL + `.md`) - Developer: [FourM, K.K.](https://appshunter.io/developer/1553438500) - Category: Games, Entertainment, Card - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 12.0 · 135 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan) - Released: 2022-06-18 - Data updated: 2026-08-23 - User reviews in markdown: https://appshunter.io/ios/app/brain-trainingthe-number-line/id1620506179/reviews.md ## What is Brain training? Rules -On the number line, there is a numerical value of the damage that the offense inflicts on the defense. ・ Control this number using the positive and negative integer cards in your hand. ・ Some cards have × and ÷ attached to the front. ・ On the offense turn, move the number line in the positive direction and aim for great damage! ・ On the defensive turn, move the number line in the negative direction and repel the damage! Operation method ・ While looking at the numbers on the number line, select the card in your hand and set the card. ・ Based on the opponent's hand, think about how to make the maximum attack on the opponent. EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 500 diamond | $4.99 | one-time | | 80 diamond | $0.99 | one-time | | 1200 diamond | $8.99 | one-time | | 6500 diamond | $44.99 | one-time | | 14000 diamond | $89.99 | one-time | | 2500 diamond | $17.99 | one-time | | エルフ | $12.99 | one-time | | バトルパス | $4.99 | one-time | ## Version history (last 5 releases) ### 2.6.0 — 2023-10-06 The following updates have been made - Added daily missions - Addition of event stages - Addition of backstage (formula mode) - Other minor fixes ### 2.5.0 — 2023-08-17 The following features have been added ・Added a 10-round gacha ・Addition of the "Rouguin Bonus ### 2.0.1 — 2023-06-21 Major updates have been made - One character can be selected. - Added weapons and skill - Added gacha ### 2.0.0 — 2023-02-01 Minor corrections have been made. ### 1.4.0 — 2023-01-12 The application has been significantly renewed! ・New characters (10 in total)! ・New stages have been added! ・New stages have been added. ## Apps similar to Brain training | App | Rating | Price | Category | | --- | --- | --- | --- | | [Heroes & Villains: PvP CCG](https://appshunter.io/ios/app/heroes-and-villains-pvp-ccg/id1611155641) | 4.3 (29) | Free | Games | | [紙飛行機の天才](https://appshunter.io/ios/app/id6742813842) | — | Free | Games | | [Do11s - Simple 2Player Game](https://appshunter.io/ios/app/do11s-simple-2player-game/id1473729030) | — | Free | Games | | [Subtraction App](https://appshunter.io/ios/app/subtraction-app/id1622934481) | — | Free | Games | | [Zoeti](https://appshunter.io/ios/app/zoeti/id6479543285) | 5.0 (9) | $7.99 | Games | | [Bomb Chip Battle: 2 Player](https://appshunter.io/ios/app/bomb-chip-battle-2-player/id6759781862) | — | Free | Games | ## More apps by FourM, K.K. - [ラーメンデータベース-レビューとランキングでラーメン屋探し](https://appshunter.io/ios/app/id511154461) - [Super Dice](https://appshunter.io/ios/app/super-dice/id1553438498) - [Merge The Numbers：Brain Puzzle](https://appshunter.io/ios/app/merge-the-numbersbrain-puzzle/id1600668215) - [2D Rubiks Cube: Make Rainbow](https://appshunter.io/ios/app/2d-rubiks-cube-make-rainbow/id1614617363) - [Prove Your Power](https://appshunter.io/ios/app/prove-your-power/id1619863833) All apps by FourM, K.K.: https://appshunter.io/developer/1553438500 --- *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 2026-08-23.*