# One Left vs Color Block Trace

The clearest difference is iOS requirement: Color Block Trace at 15 against One Left's 17.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | One Left | Color Block Trace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 14 MB | 7 MB |
| Requires iOS | 17.6 | **15** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Brotto Rangel da Silva](https://appshunter.io/developer/1868933438) | [旭萍 张](https://appshunter.io/developer/1882426038) |

## What reviewers say

### One Left

[App page](https://appshunter.io/ios/app/one-left-peg-solitaire/id6757789359)

**In-app purchases:** none


### Color Block Trace

[App page](https://appshunter.io/ios/app/color-block-trace/id6761095288)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Left free?

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

### Is Color Block Trace free?

Color Block Trace is free to download, with no in-app purchases.

### Do One Left or Color Block Trace have ads?

Neither One Left nor Color Block Trace shows ads.

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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.*