# Units vs Unit Converter A1

The clearest difference is rating: Units at 4.9 against Unit Converter A1's 2.0. Units also leads on update cadence (every 5 weeks vs every 30 months) and ratings volume (262 vs 1). Unit Converter A1's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Units sells 3 in-app purchases, starting at $0.99 per month. Unit Converter A1 asks for nothing beyond the download.

Units holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Units has 262 ratings behind it against 1, so its average is the more settled of the two.

Units ships an update every 5 weeks, Unit Converter A1 every 30 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Units | Unit Converter A1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (262 ratings)](https://appshunter.io/ios/app/units-unit-converter/id1527329982/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-a1/id1588554636/reviews) |
| Number of ratings | **262** | 1 |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 30 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Maier](https://appshunter.io/developer/454364359) | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) |

## What reviewers say

### Units

[App page](https://appshunter.io/ios/app/units-unit-converter/id1527329982)

Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.

**Highlights:** Extensive unit conversions, Multiple currency support, Easy and clear handling, Converts length, mass, volume, Supports speed, area, pressure, Converts time and temperature

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| One time purchase | $9.99 | one-time |


### Unit Converter A1

[App page](https://appshunter.io/ios/app/unit-converter-a1/id1588554636)

This application simplifies daily unit conversions with easy-to-use tools. It offers a comprehensive range of conversions across basic, living, and science categories, making calculations accessible to everyone.

**Highlights:** Basic, Living, and Science Converters, Length, Weight, Area, Volume conversions, Temperature, Time, Speed, Fuel conversions, Pressure, Force, Power, Angle conversions, Digital and Frequency conversions, Easy and simple interface, Accurate and fast calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is Units free?

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

### Is Unit Converter A1 free?

Unit Converter A1 is free to download, with no in-app purchases.

### Which has better reviews, Units or Unit Converter A1?

Units is rated higher. Units averages 4.9 out of 5 from 262 ratings, while Unit Converter A1 averages 2.0 from 1 ratings.

### Do Units or Unit Converter A1 have ads?

Neither Units nor Unit Converter A1 shows ads.

### Which is updated more often, Units or Unit Converter A1?

Units ships an update every 5 weeks, and Unit Converter A1 every 30 months. Most recently, Units was updated on November 3, 2026 and Unit Converter A1 on November 3, 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.*