# Flash Digits vs 9BLOCK

The clearest difference is rating: 9BLOCK at 5.0 against Flash Digits's 4.0. 9BLOCK also leads on ratings volume (3 vs 1). Flash Digits's advantage is update cadence (weekly vs every 3 weeks). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

9BLOCK holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Flash Digits ships an update weekly, 9BLOCK every 3 weeks. The most recent releases landed on October 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Flash Digits | 9BLOCK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/flash-digits-memory-challenge/id6760410923/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/9block-memory-game/id6785684483/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 68 MB | 23 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ROKONTECH LLC](https://appshunter.io/developer/1347808056) | [Duncan Fondren](https://appshunter.io/developer/6785684485) |

## What reviewers say

### Flash Digits

[App page](https://appshunter.io/ios/app/flash-digits-memory-challenge/id6760410923)

Test your visual memory and reaction speed by recalling rapidly flashing numbers. Progress through increasing difficulty levels and compete globally. It's a simple yet challenging game of pure memory.

**Highlights:** Rapid number flashing, Progressive difficulty tiers, Combo system, Global leaderboard, Personal best tracking, Offline play

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

**In-app purchases:** none


### 9BLOCK

[App page](https://appshunter.io/ios/app/9block-memory-game/id6785684483)

This minimalist game challenges your visual recall and focus by requiring you to memorize the order of numbers on nine blocks. It's a quick, engaging experience that's easy to learn but difficult to master.

**Highlights:** Memorize number order, Tap numbers 1-9, Improve longest streak, Ranked progression, Customize blocks and reveal time, Track personal bests

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash Digits free?

Flash Digits is free to download, with no in-app purchases.

### Is 9BLOCK free?

9BLOCK is free to download, with no in-app purchases.

### Which has better reviews, Flash Digits or 9BLOCK?

9BLOCK is rated higher. Flash Digits averages 4.0 out of 5 from 1 ratings, while 9BLOCK averages 5.0 from 3 ratings.

### Do Flash Digits or 9BLOCK have ads?

Neither Flash Digits nor 9BLOCK shows ads.

### Which is updated more often, Flash Digits or 9BLOCK?

Flash Digits ships an update weekly, and 9BLOCK every 3 weeks. Most recently, Flash Digits was updated on October 9, 2026 and 9BLOCK on October 31, 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.*