# Unit Eater vs Prozentrechner.net

The clearest difference is device support: Unit Eater at 4 against Prozentrechner.net's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Eater sells 2 in-app purchases, starting at $0.99 per month and Prozentrechner.net sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Unit Eater | Prozentrechner.net |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 41 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tom Leon Schmidt](https://appshunter.io/developer/1634212175) | [FUTR UG (haftungsbeschrankt)](https://appshunter.io/developer/6781630912) |

## What reviewers say

### Unit Eater

[App page](https://appshunter.io/ios/app/unit-eater/id6742549723)

This utility app functions as a powerful calculator that handles unit conversions and calculations. It supports a vast array of predefined units and allows users to define their own, making it ideal for scientific and academic tasks. Features include a calculation history, customizable results, and dark mode.

**Highlights:** Unit conversion and calculation, Custom unit definition, Extensive unit library, Calculation history, Customizable result format, Dark mode

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $0.99 | per month |
| Premium - Pay once | $3.99 | one-time |


### Prozentrechner.net

[App page](https://appshunter.io/ios/app/prozentrechnernet/id6781630910)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monatsabo | $0.99 | per month |
| Pro Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Unit Eater free?

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

### Is Prozentrechner.net free?

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

### Do Unit Eater or Prozentrechner.net have ads?

Neither Unit Eater nor Prozentrechner.net shows ads.

### Which is updated more often, Unit Eater or Prozentrechner.net?

Unit Eater ships an update every 2 weeks, and Prozentrechner.net every 2 weeks. Most recently, Unit Eater was updated on October 16, 2026 and Prozentrechner.net on October 24, 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.*