# Cognitive Boost vs Flash Digits

The clearest difference is rating: Cognitive Boost at 4.9 against Flash Digits's 4.0. Cognitive Boost also leads on ratings volume (13 vs 1). On price, update cadence, 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.

Cognitive Boost holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Cognitive Boost has 13 ratings behind it against 1, so its average is the more settled of the two.

Cognitive Boost ships an update every 11 days, Flash Digits weekly. The most recent releases landed on October 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Cognitive Boost | Flash Digits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (13 ratings)](https://appshunter.io/ios/app/cognitive-boost/id6443752846/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/flash-digits-memory-challenge/id6760410923/reviews) |
| Number of ratings | **13** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free | Free |
| Size | 10 MB | 68 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [4Genera LLC](https://appshunter.io/developer/1616912290) | [ROKONTECH LLC](https://appshunter.io/developer/1347808056) |

## What reviewers say

### Cognitive Boost

[App page](https://appshunter.io/ios/app/cognitive-boost/id6443752846)

This app offers daily brain workouts designed to enhance cognitive abilities and improve memory. Its intuitive, emoji-based games are suitable for all ages and can be played in short bursts, making it ideal for quick mental exercises.

**Highlights:** Daily brain workouts, Improve cognitive abilities, Memory training games, Emoji-based challenges, Suitable for all ages, Short game sessions

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Cognitive Boost free?

Cognitive Boost is free to download, with no in-app purchases.

### Is Flash Digits free?

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

### Which has better reviews, Cognitive Boost or Flash Digits?

Cognitive Boost is rated higher. Cognitive Boost averages 4.9 out of 5 from 13 ratings, while Flash Digits averages 4.0 from 1 ratings.

### Do Cognitive Boost or Flash Digits have ads?

Neither Cognitive Boost nor Flash Digits shows ads.

### Which is updated more often, Cognitive Boost or Flash Digits?

Cognitive Boost ships an update every 11 days, and Flash Digits weekly. Most recently, Cognitive Boost was updated on October 4, 2026 and Flash Digits on September 23, 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.*