# Blue Control App vs ChessScroll

The clearest difference is in-app purchases: Blue Control App at none against ChessScroll's 2. Blue Control App also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). ChessScroll's advantage is update cadence (fortnightly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. ChessScroll sells 2 in-app purchases, starting at $7.99 per month. Blue Control App asks for nothing beyond the download.

Blue Control App ships an update every 2 months, ChessScroll fortnightly. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Blue Control App | ChessScroll |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chessscroll-earn-your-scroll/id6789703834/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 2 MB | 100 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eutech electronics](https://appshunter.io/developer/1454358193) | [MICHAŁ ROSTKOWSKI](https://appshunter.io/developer/1888939019) |

## What reviewers say

### Blue Control App

[App page](https://appshunter.io/ios/app/blue-control-app/id1538423956)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChessScroll

[App page](https://appshunter.io/ios/app/chessscroll-earn-your-scroll/id6789703834)

This app locks distracting applications behind chess puzzles. Solve a puzzle to earn minutes of screen time for your chosen apps. It aims to reduce screen time by integrating practice into existing habits.

**Highlights:** App locking with chess puzzles, Customizable scroll time per puzzle, Offline puzzle functionality, Personalized puzzle difficulty, Privacy-focused, no account needed, Reduces screen time through habit integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $7.99 | per month |
| Annual Membership | $39.99 | per year |


## Frequently asked questions

### Is Blue Control App free?

Blue Control App is free to download, with no in-app purchases.

### Is ChessScroll free?

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

### Do Blue Control App or ChessScroll have ads?

Neither Blue Control App nor ChessScroll shows ads.

### Which is updated more often, Blue Control App or ChessScroll?

Blue Control App ships an update every 2 months, and ChessScroll fortnightly. Most recently, Blue Control App was updated on September 28, 2026 and ChessScroll on October 15, 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.*