# Simple Add Subtract — Brain exercise with + & -

> Brain exercise with + & - (iPhone/iPad app by Hong Yu.)

- Source: https://appshunter.io/ios/app/simple-add-subtract/id1473721165 (this page in markdown: same URL + `.md`)
- Developer: [Hong Yu](https://appshunter.io/developer/1461721611)
- Category: Games, Health & Fitness, Trivia
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 6 MB
- Languages: English
- Released: 2019-08-04
- Data updated: 2026-07-05
- User reviews in markdown: https://appshunter.io/ios/app/simple-add-subtract/id1473721165/reviews.md

## What is Simple Add Subtract?

This is a brain exercise game that does only simple adding and subtracting with maximum 2 digits.

A result and 36 numbers are given. Find the numbers that add up equal to the given result. there are 18 sets or combinations for "add 2 numbers", 12 for "add 3 numbers", 9 for "add 4 numbers" and 6 for "add 6 numbers".

In a relax mood, use adding and subtracting to find the right set or combination. This will keep human brain in light function with calculation and get aways from any other things.

The "Live Result" and the "Display Hint" button are off at default. They can be turned on at the setting scene if it is needed.

The letter and background colour of the 36 number boxes can be changed at the setting scene.


## Version history (last 3 releases)

### 1.2 — 2026-06-24

Require IOS 18 or newer

### 1.01 — 2021-04-11

Minor bug fixes

### 1.0 — 2019-07-26

No release notes.

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## More apps by Hong Yu

- [Tap Number](https://appshunter.io/ios/app/tap-number/id1461721612)
- [Running Chicken Lite](https://appshunter.io/ios/app/running-chicken-lite/id1462493455)
- [Tap Tap Match](https://appshunter.io/ios/app/tap-tap-match/id1479633580)
- [My Robot](https://appshunter.io/ios/app/my-robot/id1513755207)
- [Break It or Is Broken](https://appshunter.io/ios/app/break-it-or-is-broken/id1526171147)

All apps by Hong Yu: https://appshunter.io/developer/1461721611

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*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 2026-07-05.*