# OneThing vs Quantum Converter

The clearest difference is in-app purchases: Quantum Converter at none against OneThing's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OneThing sells 3 in-app purchases, starting at $0.99 per month. Quantum Converter asks for nothing beyond the download.

## The numbers

| Metric | OneThing | Quantum Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 46 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建 徐](https://appshunter.io/developer/1736045881) | [Shafaqat Ali](https://appshunter.io/developer/6781590615) |

## What reviewers say

### OneThing

[App page](https://appshunter.io/ios/app/onething-make-change/id6758565847)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly member | $0.99 | per month |
| yearly member | $2.99 | per year |
| Life member | $6.99 | one-time |


### Quantum Converter

[App page](https://appshunter.io/ios/app/quantum-converter/id6784177324)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OneThing free?

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

### Is Quantum Converter free?

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

### Do OneThing or Quantum Converter have ads?

Neither OneThing nor Quantum Converter 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.*