# Fast Focus vs RRLL

The clearest difference is in-app purchases: RRLL at none against Fast Focus's 1. RRLL also leads on update cadence (every 10 months vs every 69 months). Fast Focus's advantage is ads (none vs shown) and iOS requirement (8.0 vs 12.0). On price and device support there is nothing between them.

Both are free to download. Fast Focus sells 1 one-off in-app purchase. RRLL asks for nothing beyond the download.

Fast Focus ships an update every 69 months, RRLL every 10 months. The most recent releases landed on October 26, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Fast Focus | RRLL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/rrll/id1611876569/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 69 months | **Every 10 months** |
| Monetization | — | Ad-supported |
| Size | 20 MB | 24 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [111   (LLC)](https://appshunter.io/developer/507380930) | [YUSEI MIYOSHI](https://appshunter.io/developer/1086550692) |

## What reviewers say

### Fast Focus

[App page](https://appshunter.io/ios/app/fast-focus-the-counting-game/id829510127)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $1.99 | one-time |


### RRLL

[App page](https://appshunter.io/ios/app/rrll/id1611876569)

This game tests dynamic visual acuity by having players tap the correct half of the screen based on visual cues. Aim to beat your high score by accurately responding within a 10-second measurement period. Improve your reaction time and precision with this engaging challenge.

**Highlights:** Dynamic visual acuity measurement, 10-second testing periods, High score tracking, Left/right screen touch controls, Score-based feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fast Focus free?

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

### Is RRLL free?

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

### Do Fast Focus or RRLL have ads?

RRLL shows ads; Fast Focus does not.

### Which is updated more often, Fast Focus or RRLL?

Fast Focus ships an update every 69 months, and RRLL every 10 months. Most recently, Fast Focus was updated on October 26, 2026 and RRLL on October 17, 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.*