# CONVERT UNITS — Metric, Science & Engineering

> Versatile unit and currency converter with advanced customization options. (iPhone/iPad app by Adysseus.)

- Source: https://appshunter.io/ios/app/convert-units/id1114969241 (this page in markdown: same URL + `.md`)
- Developer: [Adysseus](https://appshunter.io/developer/447444997)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.70/5 from 1,352 App Store ratings · 31 written reviews indexed
- Age rating: +4
- Requires: iOS 15.0 · 14 MB
- Languages: Brazilian Portuguese, German (Germany), Bangla, Czech, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, Croatian, Danish, Slovak and 23 more
- Released: 2016-07-04
- Data updated: 2026-08-27
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/convert-units/id1114969241/reviews.md

## What is CONVERT UNITS?

CONVERT UNITS is built for the numbers a general converter treats as an afterthought: torque, pressure, viscosity, density, thermal conductivity, magnetic flux density, radioactivity, luminance. Close to 40 of its 72 categories are scientific and engineering categories, covering 685 units in total, in a fast, no-nonsense dark interface built to do one thing: give you the answer and get out of the way.

Two scrolling lists, a big keypad, and a result that updates as you type.

72 CATEGORIES, 685 UNITS
Torque, pressure, viscosity, density, thermal conductivity, magnetic flux density, radioactivity, luminance — plus length, weight, temperature, speed, area, volume, time, power, energy, data, fuel economy and dozens more.

CURRENCY, CRYPTO AND METALS
- 160 world currencies, with rates refreshed daily.
- 126 cryptocurrencies.
- Gold, silver, platinum and palladium.
- Update rates automatically, once a day, on every launch, or only when you ask.

BUILT TO BE FAST
- An alphabetical index down the side of every list - jump straight to a unit instead of scrolling past hundreds.
- Search every unit in every category from a single field.
- Launch straight into the category you actually use and skip the home screen entirely.
- Hide the categories you never touch, so the grid stays yours.

PRECISION ON YOUR TERMS
- Trim results by significant figures or by decimal places, whichever the spec calls for.
- Significant figures keep small numbers detailed: 0.030333 at 3 figures gives 0.0303.
- Decimal places line every result up on the same column: 2 places gives 13.78.
- Round results up, or leave them exact.

THE DETAILS
- 33 languages: English, Spanish, French, German, Portuguese, Italian, Japanese, Korean, Chinese (Simplified), Chinese (Traditional), Russian, Arabic, Hindi, Thai, Turkish, Vietnamese, Swedish, Norwegian, Danish, Dutch, Romanian, Ukrainian, Czech, Polish, Croatian, Hungarian, Slovak, Malay, Indonesian, Urdu, Tamil, Telugu, and Bangla.
- iPhone and iPad, with a layout built for each, plus Split View so you can convert alongside another app.
- Mute the keypad and lock rotation if you prefer.
- A dark design with bold, readable figures.

## Key features

- Converts length, weight, speed, area, time, pressure, volume, power, fuel, temperature, data, and currency
- Automatic currency updates
- 160 currencies available
- Multitasking enabled for iPad
- Alphabetical quick links for units
- Customizable startup categories
- Adjustable accuracy and rounding

## What do users think of CONVERT UNITS?

Overall sentiment: positive

**Pros**

- 👍 Quick & easy to use
- 👍 Ease of use
- 👍 Simple and easy to use
- 👍 Well thought out and easy to use
- 👍 Excellent and very reliable
- 👍 Handy app
- 👍 Useful app

**Cons**

- 🐛 Ads obstruct use
- 🐛 Subscription required to remove ads
- 🐛 Currency conversion not working

**Commonly reported bugs**

- App got stuck, required uninstall/reinstall to fix
- Navigation issues, unable to get back to home page

**Most requested features**

- Option to convert between functions (length to volume)
- Remember last conversion settings for each category

## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/convert-units/id1114969241/reviews.md

### 1/5 — Ditch the sexist banner

*2026-08-16*

In most respects this looks like a good, useful unit converter. But WHY the sexist banner? Can’t you at least provide an option for getting rid of it? I’d gladly pay.

**Developer response:** We are sorry that you are having issues with the app. Could you email support we would like to know what part of the Banner is sexist, this is not our intention. If you are referring to the Ad banner, we are  getting ads from Google, we don't really control the type of ads being shown but if you could give us an example we can message Google to restrain certain ads.

### 5/5 — Conversion chart

*2026-07-17*

I’m feeling accomplished in being able to convert my numbers.

**Developer response:** Thank you for your feedback! I hope you enjoy the app!

### 3/5 — Size matters

*2026-05-06*

Went look up meters to yards and I couldn’t do yards tried switching it around…no go

**Developer response:** Thank you for your feedback. Could you try the latest version of the app, to see if it solved your problems?

### 4/5 — Oh Yeah

*2026-03-12*

Quick & easy - just the way I like my conversions!

**Developer response:** Thank you for your feedback!

### 4/5 — Changes

*2026-02-16*

I suggest an option to go from one function, length to volume 
for example, without closing and reopening the app.

**Developer response:** Thank you for the feedback. Isn't this possible by pressing the home button and going back to the Home Screen?

### 5/5 — Ease of use.

*2026-01-05*

I had used another app., which had allowed, unwanted, unsolicited and inappropriate advertising to pop while you used the app. I couldn’t  x the ribbon ad. Glad to have found Convert Units, it is just as easy to use, and free of unwanted ads. Thanks.

### 5/5 — Good

*2025-09-29*

Perfect

### 5/5 — Excellent

*2025-09-23, version 0.3*

Excellent app. Very useful, well worth the download.

### 5/5 — Easy to convert,helps me a lot

*2025-06-14*

I am 12 years old and I come from American and when I  go to other countries, it goes in handy

### 5/5 — Très pratique

*2024-08-24, version 0.3*

Très pratique

## Frequently asked questions about CONVERT UNITS

### What types of conversions does this app support?

This app supports a wide range of conversions, including length, weight, speed, area, time, pressure, volume, power, fuel, temperature, data, and currency. It offers a comprehensive solution for various measurement needs.

### How does the app handle currency conversions?

The app provides a mind-boggling 160 currencies to choose from and can update currency exchange rates automatically, manually, once a day, or every time the app is launched. This ensures you always have access to the latest rates.

### Is this app free to use?

Yes, the app is free to use. However, it does display advertisements to support its development and maintenance.

### Can I customize the accuracy of the conversions?

Yes, the app offers exceptional accuracy by allowing you to choose the number of significant digits to display. You can also choose whether to round up the results, providing flexibility in how your converted values are presented.

### What are the benefits of the iPad multitasking feature?

For iPad users, the app is multitasking enabled. This means you can perform unit conversions simultaneously while using other applications like Safari, enhancing your productivity and workflow without needing to switch between apps.

## Version history (last 5 releases)

### 1.2 — 2026-08-25

Now in 33 languages.

• 20 new languages: Thai, Turkish, Vietnamese, Swedish, Norwegian, Danish, Dutch, Romanian, Ukrainian, Czech, Polish, Croatian, Hungarian, Slovak, Malay, Indonesian, Urdu, Tamil, Telugu, and Bangla. Urdu joins Arabic with full right-to-left layout.
• Every category, unit and currency name is translated, not just the buttons.
• Numbers are written the way your own country writes them.

Also since 1.0:
• iPad fits nearly twice as many units and categories on screen, sized for the display instead of scaled up from the phone.
• Results can be trimmed by decimal places, not just significant figures.
• Search across every unit in every category from one field.
• Hide the categories you don't use.
• Currency covers 126 cryptocurrencies and the four precious metals alongside 160 world currencies.

### 1.1 — 2026-08-14

Version 1.1

- CONVERT UNITS is now fully localized in 13 languages, including full right-to-left support for Arabic.
- Many more categories and units to convert.
- Search across every unit in every category from one field.
- Hide the categories you don't use.
- Results can now be trimmed by decimal places, not just significant figures.
- Currency now covers 126 cryptocurrencies and the four precious metals alongside 160 world currencies.
- iPad now fits nearly twice as many units and categories on screen, sized for the display instead of scaled up from the phone.
- Stability and layout fixes throughout, including a keyboard that matches the dark theme.

### 1.0 — 2026-08-11

Version 1.0

- CONVERT UNITS is now fully localized in 13 languages, including full right-to-left support for Arabic.
- Many more categories and units to convert.
- Search across every unit in every category from one field.
- Hide the categories you don't use.
- Results can now be trimmed by decimal places, not just significant figures.
- Currency now covers 126 cryptocurrencies and the four precious metals alongside 160 world currencies.
- iPad now fits nearly twice as many units and categories on screen, sized for the display instead of scaled up from the phone.
- Stability and layout fixes throughout, including a keyboard that matches the dark theme.

### 0.3 — 2024-08-02

Fixed currency not updating.

### 0.2.8 — 2022-04-06

Internal update

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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.*