# FlashAnzan: Mental Math — Sum numbers as they flash

> Sum numbers as they flash (iPhone/iPad app by Haruhiko Kishi.)

- Source: https://appshunter.io/ios/app/flashanzan-mental-math/id6799545041 (this page in markdown: same URL + `.md`)
- Developer: [Haruhiko Kishi](https://appshunter.io/developer/942468714)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: American English, Japanese
- Released: 2026-08-25
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/flashanzan-mental-math/id6799545041/reviews.md

## What is FlashAnzan?

Practice flash anzan on your own—fast rounds, clear feedback, no clutter.

Pick digits, how many numbers, and how long each stays on screen, then tap Start. Numbers appear one by one. After the last one, enter a single total to score. Correct and incorrect answers use marks and sound, and a session score stays while the app is open. Cancel mid-flash and that round is not counted. Closing the app clears the score.

No accounts, no network, no purchases. Works on iPhone and iPad. The UI follows the device language (English / Japanese).


## Version history (last 1 release)

### 1.0 — 2026-08-25

No release notes.

## More apps by Haruhiko Kishi

- [Home Rhythmique: Kids Music](https://appshunter.io/ios/app/home-rhythmique-kids-music/id1076496309)
- [Cube: 3x3 Cube Solver](https://appshunter.io/ios/app/cube-3x3-cube-solver/id6766549951)
- [Headroom: Remote Desktop](https://appshunter.io/ios/app/headroom-remote-desktop/id6790331904)

All apps by Haruhiko Kishi: https://appshunter.io/developer/942468714

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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 2026-08-31.*