# Flash Digits vs KeyCrush

The clearest difference is in-app purchases: Flash Digits at none against KeyCrush's 3. Flash Digits also leads on update cadence (weekly vs fortnightly) and iOS requirement (16.6 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. KeyCrush sells 3 one-off in-app purchases. Flash Digits asks for nothing beyond the download.

Flash Digits ships an update weekly, KeyCrush fortnightly. The most recent releases landed on August 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Flash Digits | KeyCrush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/flash-digits-memory-challenge/id6760410923/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 68 MB | 50 MB |
| Requires iOS | **16.6** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ROKONTECH LLC](https://appshunter.io/developer/1347808056) | [JONATHAN STEVE MACEREN](https://appshunter.io/developer/1892075573) |

## 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


### KeyCrush

[App page](https://appshunter.io/ios/app/keycrush/id6781555783)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10,000 Fragments | $2.99 | one-time |
| 100,000 Fragments | $5.99 | one-time |
| 25,000 Fragments | $19.99 | one-time |


## Frequently asked questions

### Is Flash Digits free?

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

### Is KeyCrush free?

KeyCrush is free to download, with in-app purchases available.

### Do Flash Digits or KeyCrush have ads?

Neither Flash Digits nor KeyCrush shows ads.

### Which is updated more often, Flash Digits or KeyCrush?

Flash Digits ships an update weekly, and KeyCrush fortnightly. Most recently, Flash Digits was updated on August 15, 2026 and KeyCrush on September 8, 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.*