# Units Free vs Units Calculator

The clearest difference is in-app purchases: Units Calculator at none against Units Free's 1. Units Free's advantage is ads (none vs shown) and iOS requirement (5.1.1 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Units Free sells 1 one-off in-app purchase. Units Calculator asks for nothing beyond the download.

## The numbers

| Metric | Units Free | Units Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/units-free/id510615778/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 6 MB |
| Requires iOS | **5.1.1** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Rakesh Bhadani](https://appshunter.io/developer/1647133078) |

## What reviewers say

### Units Free

[App page](https://appshunter.io/ios/app/units-free/id510615778)

Easily convert between various units across multiple categories like length, temperature, and weight. Access past conversions through a history list and send calculations via email. This free version offers core functionality with an option to upgrade for full category access.

**Highlights:** Multiple unit categories (length, temp, weight, etc.), Metric and imperial system support, Conversion history list, Send calculations via email, iPad multitasking support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Units Free Upgrade | $0.99 | one-time |


### Units Calculator

[App page](https://appshunter.io/ios/app/units-calculator/id6742182706)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Units Free free?

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

### Is Units Calculator free?

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

### Do Units Free or Units Calculator have ads?

Units Calculator shows ads; Units Free does not.

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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.*