# One Left vs Compound Boom

The clearest difference is ads: One Left at none against Compound Boom's shown. Compound Boom's advantage is update cadence (every 4 days vs monthly) and iOS requirement (12.0 vs 17.6). On price, 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.

One Left ships an update monthly, Compound Boom every 4 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | One Left | Compound Boom |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Size | 14 MB | 87 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Brotto Rangel da Silva](https://appshunter.io/developer/1868933438) | [桂芝 李](https://appshunter.io/developer/1860795345) |

## What reviewers say

### One Left

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

**In-app purchases:** none


### Compound Boom

[App page](https://appshunter.io/ios/app/compound-boom/id6760965686)

**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 Compound Boom free?

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

### Do One Left or Compound Boom have ads?

Compound Boom shows ads; One Left does not.

### Which is updated more often, One Left or Compound Boom?

One Left ships an update monthly, and Compound Boom every 4 days. Most recently, One Left was updated on October 5, 2026 and Compound Boom on October 7, 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.*