# Cuspart vs Pro Unit Converter

The clearest difference is in-app purchases: Cuspart at none against Pro Unit Converter's 1. Pro Unit Converter's advantage is update cadence (daily vs every 2 months) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

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

Cuspart ships an update every 2 months, Pro Unit Converter daily. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Cuspart | Pro Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | — | Free |
| Size | 8 MB | 37 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Tolga DALBUDAK](https://appshunter.io/developer/1479052908) | [Quang Tri Mai Nguyen](https://appshunter.io/developer/1626809833) |

## What reviewers say

### Cuspart

[App page](https://appshunter.io/ios/app/cuspart-unit-converter/id6444218099)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pro Unit Converter

[App page](https://appshunter.io/ios/app/pro-unit-converter/id6452273430)

This free utility app offers a quick and convenient way to convert various units with a beautiful and intuitive interface. Save frequently used conversions for easy access and convert everything from area and length to temperature and data.

**Highlights:** Multiple conversion categories, Save frequent conversions, Intuitive user interface, Quick input and results, Beautiful design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all Ads in the app | $0.99 | one-time |


## Frequently asked questions

### Is Cuspart free?

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

### Is Pro Unit Converter free?

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

### Do Cuspart or Pro Unit Converter have ads?

Neither Cuspart nor Pro Unit Converter shows ads.

### Which is updated more often, Cuspart or Pro Unit Converter?

Cuspart ships an update every 2 months, and Pro Unit Converter daily. Most recently, Cuspart was updated on September 9, 2026 and Pro Unit Converter on September 18, 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.*