# Conversions vs ZeroZip

The clearest difference is in-app purchases: Conversions at none against ZeroZip's 1. Conversions also leads on update cadence (every 2 weeks vs every 2 months). ZeroZip's advantage is iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. ZeroZip sells 1 one-off in-app purchase. Conversions asks for nothing beyond the download.

Conversions ships an update every 2 weeks, ZeroZip every 2 months. The most recent releases landed on August 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Conversions | ZeroZip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/conversions-unit-converter/id6741049598/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 3 MB | 28 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Bakker](https://appshunter.io/developer/1741809059) | [genghong Xie](https://appshunter.io/developer/1785558382) |

## What reviewers say

### Conversions

[App page](https://appshunter.io/ios/app/conversions-unit-converter/id6741049598)

Easily convert over 100 units across various categories like temperature, length, and weight. View conversion formulas, copy results, and share them directly. Enjoy a private, ad-free experience with a native iOS design.

**Highlights:** Convert 100+ units, Temperature, length, weight conversions, View conversion formulas, Copy and share conversions, Native iOS design, Ad-free experience

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

**In-app purchases:** none


### ZeroZip

[App page](https://appshunter.io/ios/app/zerozip/id6755241805)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free | $1.99 | one-time |


## Frequently asked questions

### Is Conversions free?

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

### Is ZeroZip free?

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

### Do Conversions or ZeroZip have ads?

Neither Conversions nor ZeroZip shows ads.

### Which is updated more often, Conversions or ZeroZip?

Conversions ships an update every 2 weeks, and ZeroZip every 2 months. Most recently, Conversions was updated on August 17, 2026 and ZeroZip on September 9, 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.*