# Units - Pro Unit Converter

> Free unit converter with currency exchange and customizable interface. (iPhone/iPad app by Homegrown Software Ltd.)

- Source: https://appshunter.io/ios/app/units-pro-unit-converter/id284574017 (this page in markdown: same URL + `.md`)
- Developer: [Homegrown Software Ltd](https://appshunter.io/developer/406645730)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Rating: 3.60/5 from 150 App Store ratings · 580 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.5 · 2 MB
- Languages: American English
- Released: 2019-02-03
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/units-pro-unit-converter/id284574017/reviews.md

## What is Units?

Units is a really useful free app that lets you easily convert from various units into lots of others.

Units can convert hundreds of units from 43 different categories including Speed, Time, Length, Volume, Area, Power, Temperature, Fuel Consumption, Shoe Sizes and loads more!

Units is a fully universal app with native support for iPhones, iPod touches, and iPads.

• Convert hundreds of units - Units has over 800 units across 43 different categories.
• Convert currency - Units can convert between 88 different currencies, with rates updated daily.
• Hide unused units - Units lets you hide units you don't use, allowing you to maintain a streamline conversion workflow.
• Reorder both units and unit categories to suit your needs.

## Key features

- Hundreds of units across 43 categories
- Daily updated currency exchange rates
- Hide unused units
- Reorder units and categories
- Universal app support (iPhone, iPod touch, iPad)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


## What do users think of Units?

Overall sentiment: neutral

**Pros**

- 🚀 Efficient and fast conversions
- 👍 Comprehensive list of units
- 🔍 Customizable unit selection
- 💰 Free app with optional paid version
- 🔧 Useful for engineering and technical work

**Cons**

- 🐛 Crashes and stability issues
- 🕰️ Outdated currency conversion rates
- 🔍 Too many unit categories, hard to navigate
- 💰 Ads in free version
- 📏 Ruler feature not accurate on some devices

**Commonly reported bugs**

- Crashes when clearing input fields
- Numerical keypad covers conversion results
- Incompatibility issues with newer iOS versions
- Ruler measurements not accurate on all devices

**Most requested features**

- Add nautical units (miles, knots)
- Improve currency conversion accuracy and updates
- Allow customization of visible unit categories
- Add more clothing/shoe size conversions
- Improve user interface and search functionality

## Recent user reviews (10 of 580)

All indexed reviews: https://appshunter.io/ios/app/units-pro-unit-converter/id284574017/reviews.md

### 5/5 — I’ve used this for years!

*2026-03-25, version 3.0*

Best app ever.

### 5/5 — This is so good

*2026-02-17, version 3.0*

I absolutely love this app. It can literally convert anything including currencies which is also up to date. God bless the developers.

### 4/5 — Ruler

*2026-02-06, version 3.0*

Been using this app for years. And losing the ruler is the biggest down about this app

### 3/5 — What happened to Danish Kroner?

*2026-01-18, version 3.0*

I use the currency part of this app daily. Up until today, the Danish Kroner was included in the list of currencies. Are you taking out your Greenland frustrations on an app?

### 3/5 — Currency Conversion

*2026-01-18, version 3.0*

Conversion for Malaysian ringgit & Indonesian Rupiah are missing.

### 4/5 — Widget for conversion

*2025-11-21, version 3.0*

I recently did extensive traveling and the currency conversion tool was invaluable. However, many times when I went back into it, the main screen with all conversions displayed and I had to go back into currency.  A feature to keep a particular conversion open or create a specific widget to access such would be really helpful.

### 4/5 — Great, but Tips are per device

*2025-10-12, version 3.0*

One of my favorites, but Tipping for bonus icons is per device.  There’s no restore purchase option.

### 4/5 — Please add Nautical Mile to length

*2025-10-11, version 3.0*

We have parsec and nanometer but not nautical miles.  Nautical Miles (NM) is used in piloting and we have a conversion for statute miles to nautical miles. Would be useful for flight-planning.

### 3/5 — Decent but clearly no longer maintained

*2025-09-27, version 3.0*

This app is fine for the most part, but has small issues that could make it better. For example, add the ability to insert commas on long numbers. For currencies, numbers should never be expressed in scientific notation. There are other small things but I have no hope of them being addressed because this is clearly an abandoned app.

### 1/5 — Pro Ripoff

*2025-09-02, version 3.0*

I don’t know where all the positive reviews are coming from. As anyone can tell if they scroll down, the 1-star reviews are telling the truth - the app now does not perform any calculations, it only provides a description of each measurement.  
It then deceives you into leaving a “tip” to unlock more icons, but that’s all they are - different colors of the same app icon. It doesn’t actually enable you to access the calculations. People need to flood the App Store with 1-star reviews until they fix this issue.

## Frequently asked questions about Units

### What does this unit converter app do?

This app allows you to easily convert between hundreds of different units across 43 categories. It also includes currency conversion with daily updated rates. You can customize the interface by hiding or reordering units and categories to streamline your workflow.

### What are the key features of this unit converter?

Key features include converting over 800 units across 43 categories, converting between 88 currencies with daily updated rates, the ability to hide unused units, and the option to reorder both units and unit categories to suit your preferences.

### Is this app free to use?

Yes, the app is free to download and use. It does offer in-app purchases, which may unlock additional features or remove ads.

### What devices is this app compatible with?

This is a fully universal app with native support for iPhones, iPod touches, and iPads, ensuring a seamless experience across Apple devices.

### What are some common use cases for this app?

Common use cases include converting measurements for cooking, DIY projects, travel (e.g., currency exchange, distance), and scientific or engineering tasks. The ability to customize the interface makes it suitable for frequent users of specific conversion types.

## Version history (last 5 releases)

### 3.0 — 2024-05-06

NEW
• Refreshed and updated for modern devices.
• No more adverts! Units is now free for everyone.
• Previous pro features free for everyone; you can now reorder units and unit categories to suit your needs.
• Units now fully supports Dynamic Type, scaling all of the text to your preference.
• Tip Jar; you can now show your appreciation for Units, and unlock some bonus app icons.

FIXED
• Fixed issues with currency updates.

REMOVED
• Units no longer includes ruler functionality, we're hoping to bring it back later.

### 2.4.1 — 2015-04-22

This app has been updated by Apple to display the Apple Watch app icon.

Fixed a crash affecting iOS 7 users.

### 2.4 — 2015-04-20

• Support for iPhone 6 and 6 Plus
• New, more attractive keyboard

• Apple Watch support - select a pair of units you convert frequently and access that conversion on your Apple Watch.

• Bug fixes

### 2.3.1 — 2014-02-24

Fixes a bug with currency conversion causing duplicate currencies and some incorrect conversions.

### 2.3 — 2013-09-12

• All new design for iOS 7.

## Apps similar to Units

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GlobeConvert Currency & Units](https://appshunter.io/ios/app/globeconvert-currency-and-units/id334851202) | 4.8 (80,844) | Free | Utilities |
| [Unit of measurement converter](https://appshunter.io/ios/app/unit-of-measurement-converter/id1377754425) | 4.7 (372) | Free | Utilities |
| [Unit Converter Calculator Pro](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631) | 4.7 (977) | Free | Utilities |
| [Unit Converter HD.](https://appshunter.io/ios/app/unit-converter-hd/id481973377) | 4.7 (645) | Free | Utilities |
| [Conversion Calculator Units](https://appshunter.io/ios/app/conversion-calculator-units/id727632233) | 4.7 (4,832) | Free | Utilities |
| [Fancy Units Converter](https://appshunter.io/ios/app/fancy-units-converter/id850306139) | 4.7 (1,595) | Free | Utilities |

## More apps by Homegrown Software Ltd

- [Units Premium](https://appshunter.io/ios/app/units-premium/id443122482)
- [Party DJ](https://appshunter.io/ios/app/party-dj/id705873160)
- [Sentrify - Sentry Mode Viewer](https://appshunter.io/ios/app/sentrify-sentry-mode-viewer/id1478425475)

All apps by Homegrown Software Ltd: https://appshunter.io/developer/406645730

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*