# LineFlow vs Crab Coloring

The clearest difference is in-app purchases: Crab Coloring at none against LineFlow's 1. Crab Coloring also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 months). LineFlow's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. LineFlow sells 1 one-off in-app purchase. Crab Coloring asks for nothing beyond the download.

LineFlow ships an update every 3 months, Crab Coloring every 4 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | LineFlow | Crab Coloring |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 104 MB | 63 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Waqas Farooq](https://appshunter.io/developer/1704492081) | [Anh Le Tuan](https://appshunter.io/developer/1607468790) |

## What reviewers say

### LineFlow

[App page](https://appshunter.io/ios/app/lineflow-drawing-puzzle/id6747397002)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Crab Coloring

[App page](https://appshunter.io/ios/app/crab-coloring/id6748608834)

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

**In-app purchases:** none


## Frequently asked questions

### Is LineFlow free?

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

### Is Crab Coloring free?

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

### Do LineFlow or Crab Coloring have ads?

LineFlow shows ads; Crab Coloring does not.

### Which is updated more often, LineFlow or Crab Coloring?

LineFlow ships an update every 3 months, and Crab Coloring every 4 days. Most recently, LineFlow was updated on October 30, 2026 and Crab Coloring on November 5, 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.*