# Focus Rainbow vs SosoSketch

The clearest difference is in-app purchases: SosoSketch at none against Focus Rainbow's 3. SosoSketch also leads on update cadence (daily vs every 8 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Focus Rainbow sells 3 in-app purchases, starting at $2.99 per month. SosoSketch asks for nothing beyond the download.

Focus Rainbow ships an update every 8 months, SosoSketch daily. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Focus Rainbow | SosoSketch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Size | 93 MB | 3 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshiaki Nakamura](https://appshunter.io/developer/822485897) | [Ali Amer](https://appshunter.io/developer/1705033102) |

## What reviewers say

### Focus Rainbow

[App page](https://appshunter.io/ios/app/focus-rainbow/id6569223924)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $2.99 | per month |
| Premium 6 months | $17.99 | per 6 months |
| Premium 1 year | $29.99 | per year |


### SosoSketch

[App page](https://appshunter.io/ios/app/sososketch/id6670456438)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Focus Rainbow free?

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

### Is SosoSketch free?

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

### Do Focus Rainbow or SosoSketch have ads?

Neither Focus Rainbow nor SosoSketch shows ads.

### Which is updated more often, Focus Rainbow or SosoSketch?

Focus Rainbow ships an update every 8 months, and SosoSketch daily. Most recently, Focus Rainbow was updated on October 14, 2026 and SosoSketch on October 9, 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.*