# Unit Converter vs Suanyi

The clearest difference is device support: Unit Converter at 3 against Suanyi's 1. Unit Converter also leads on iOS requirement (12.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Converter sells 1 one-off in-app purchase and Suanyi sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Unit Converter | Suanyi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 29 MB | 3 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [伟鹏 李](https://appshunter.io/developer/1817642925) | [薇薇 殷](https://appshunter.io/developer/1874158488) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-easyunit/id6754090225)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium Membership | $0.99 | one-time |


### Suanyi

[App page](https://appshunter.io/ios/app/suanyi/id6758982336)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Core | $4.99 | per 7 days |
| Yearly Core | $39.99 | per year |


## Frequently asked questions

### Is Unit Converter free?

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

### Is Suanyi free?

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

### Do Unit Converter or Suanyi have ads?

Neither Unit Converter nor Suanyi 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.*