# Flash Brain Training Game vs Abacus Practice

The clearest difference is price: Flash Brain Training Game at Free against Abacus Practice's $0.99. Flash Brain Training Game also leads on in-app purchases (none vs 1). Abacus Practice's advantage is ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Flash Brain Training Game is free to download; Abacus Practice costs $0.99 up front. Abacus Practice sells 1 one-off in-app purchase. Flash Brain Training Game asks for nothing beyond the download.

Flash Brain Training Game ships an update every 2 months, Abacus Practice every 4 months. The most recent releases landed on September 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Flash Brain Training Game | Abacus Practice |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Toru Shinnae](https://appshunter.io/developer/1441534402) | [SMART BIT K.K](https://appshunter.io/developer/1896559487) |

## What reviewers say

### Flash Brain Training Game

[App page](https://appshunter.io/ios/app/flash-brain-training-game/id1441534403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Abacus Practice

[App page](https://appshunter.io/ios/app/abacus-practice-mental-math/id6770438521)

Practice abacus, mental arithmetic, and calculation skills on your iPhone or iPad. Features a realistic abacus interface for various exercises, including addition, subtraction, multiplication, division, and flash calculations. Track your progress and review your performance over time.

**Highlights:** Realistic abacus interface, Practice addition, subtraction, multiplication, division, Flash and slip calculations, Customizable problem generation, Practice history and performance records, Adjustable settings for sound, vibration, and left-handed mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proアンロック | $2.99 | one-time |


## Frequently asked questions

### Is Flash Brain Training Game free?

Flash Brain Training Game is free to download, with no in-app purchases.

### Is Abacus Practice free?

Abacus Practice costs $0.99, and also offers in-app purchases.

### Do Flash Brain Training Game or Abacus Practice have ads?

Flash Brain Training Game shows ads; Abacus Practice does not.

### Which is updated more often, Flash Brain Training Game or Abacus Practice?

Flash Brain Training Game ships an update every 2 months, and Abacus Practice every 4 months. Most recently, Flash Brain Training Game was updated on September 27, 2026 and Abacus Practice on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*