# Units Conversion Chart vs Unit Converter

The clearest difference is in-app purchases: Units Conversion Chart at none against Unit Converter's 1. Units Conversion Chart also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 1 one-off in-app purchase. Units Conversion Chart asks for nothing beyond the download.

## The numbers

| Metric | Units Conversion Chart | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Daily |
| Size | 1 MB | 44 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vishwam B](https://appshunter.io/developer/1068325932) | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) |

## What reviewers say

### Units Conversion Chart

[App page](https://appshunter.io/ios/app/units-conversion-chart/id6752585107)

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-length-weight/id6772571131)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium · Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Units Conversion Chart free?

Units Conversion Chart is free to download, with no in-app purchases.

### Is Unit Converter free?

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

### Do Units Conversion Chart or Unit Converter have ads?

Unit Converter shows ads; Units Conversion Chart does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*