# Unit Converter Simple vs Unit Converter A1

The clearest difference is rating: Unit Converter Simple at 4.0 against Unit Converter A1's 2.0. Unit Converter Simple also leads on update cadence (every 10 months vs every 30 months) and iOS requirement (13.0 vs 15.0). Unit Converter A1's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Unit Converter Simple holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Unit Converter Simple ships an update every 10 months, Unit Converter A1 every 30 months. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Unit Converter Simple | Unit Converter A1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-simple/id1531846614/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-a1/id1588554636/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 months** | Every 30 months |
| Monetization | Ad-supported | **Free** |
| Size | 18 MB | 24 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) |

## What reviewers say

### Unit Converter Simple

[App page](https://appshunter.io/ios/app/unit-converter-simple/id1531846614)

Easily convert between various units of measurement for length, weight, volume, and more. View converted values in a convenient list and customize the display to show only the units you need. Supports a wide range of common and specialized units.

**Highlights:** Converts length, weight, area, volume, and more, Displays converted values in a list, Customizable unit visibility, Supports a wide variety of units, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Unit Converter Simple free?

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

### Is Unit Converter A1 free?

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

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

Unit Converter Simple is rated higher. Unit Converter Simple averages 4.0 out of 5 from 1 ratings, while Unit Converter A1 averages 2.0 from 1 ratings.

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

Unit Converter Simple shows ads; Unit Converter A1 does not.

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

Unit Converter Simple ships an update every 10 months, and Unit Converter A1 every 30 months. Most recently, Unit Converter Simple was updated on October 27, 2026 and Unit Converter A1 on October 15, 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.*