# Unit Convert — Convert units seamlessly

> Offline unit converter with custom units and precise fractional inch support. (iPhone/iPad app by Nikolay Khotenko.)

- Source: https://appshunter.io/ios/app/unit-convert/id1590954132 (this page in markdown: same URL + `.md`)
- Developer: [Nikolay Khotenko](https://appshunter.io/developer/1515869956)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Rating: 4.60/5 from 12 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 3 MB
- Languages: American English
- Released: 2021-11-08
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/unit-convert/id1590954132/reviews.md

## What is Unit Convert?

No categories to browse. No ads to dismiss. Just start typing—it’s as simple as this.

Built to stay. Out of your way.

-No Interruptions. Zero ads, zero banners—focus entirely on the task at hand.
-No Accounts. Open the app and start converting. We don't track you, and we don't require a login.
-Unplugged. Every conversion engine is built to work 100% offline. From remote job sites to the heart of the kitchen, your tools are always ready.
-Make the app your own by adding custom units. Choose your preferred output—decimal, scientific, or fractional—and save your most frequent conversions as Favorites for one-tap access.

Precision you need, at lightning speed.

-Convert to fractional inches with selectable precision—down to 1/16", 1/32", or beyond. Include conversion to fractional inches with ability to select accuracy (1/8, 1/16 etc). For example 35.235 cm -> 13 7/8" or 13 28/32" depending on the level of precision chosen.
-Include conversion from "feet inches" and to "feet-inches". For example convert 6' 4" -> 193.040 cm. Convert 282.43 cm -> 9' 3 1/4".
-Effortlessly bridge the gap between "Feet-Inches" and metric. Move from 6' 4" to centimeters and back again with surgical accuracy.
-Perform basic math and input fractions directly into the conversion field. It’s a calculator and a converter, perfectly in sync.

Infinite range, for every exchange.

-Always Current. Access live exchange rates that stay cached for offline use when you’re off the grid.
-Depth and Breadth. Whether it’s running pace, shoe sizes, or mass-to-volume for the perfect bake, we’ve covered the essentials and the obscure.
-Industrial Strength. Professional-grade support for flow rate, torque, force, viscosity, and density.

## Key features

- Ad-free and account-free operation
- 100% offline functionality
- Custom unit creation
- Fractional inch conversion with selectable precision
- Feet-inches to metric conversion
- Integrated calculator for fractions
- Live exchange rates (cached offline)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Exchange Rates | $0.99 | one-time |


## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/unit-convert/id1590954132/reviews.md

### 5/5 — I use this app often

*2025-10-19*

I speak with friends in China often and we talk about weather and I use this app to convert  to Celsius. Today I am using it to type up the measurements in my favorite bread roll recipe.

**Developer response:** Thank you for taking the time to review - hearing all this makes us very happy.

### 5/5 — Great app - very helpful

*2025-09-01, version 5.0*

I have this app open in the background almost all the time - very useful, simple, highly recommend

### 5/5 — Simple but very robust.

*2024-07-28*

Excellent little tool. Easy to use and extremely wide in it's scope. That's not easy to pull off. 

The fact that I have no idea what 95% of the list is means the developer really did their homework. $2 is very reasonable to add currency exchange rates in my opinion, which I did. 

Suggestions: 

- A menu bar option with a "startup on login"  would be incredibly useful. 

- The ability to add custom calculations would be wonderful. A user can specify the number of fields, their names, custom dropdown lists to choose from, and calculations needed. Video recording rates and estimated time available for a device based on storage for example. This isn't a universal metric/conversion, but it's just an example. 

I have a device that records 720p @ 30 fps which uses 40 mb per min. I'd enter the megabytes per min as a field, then total storage available. I have 62gb available. So the calculation would be 62 * 1024 (gb to mb) / number of mb per min. Then it would give me 1,587 min, which I could then format to hr:min using an existing conversion available in the app. 

I know I can enter math in the fields, but this feature would be a big timesaver. And this is just a simple example, other users could use this feature to do far more complex calculations.

**Developer response:** Hi there - first off thanks for taking time to provide feedback and we are glad you are enjoying the app! 

We will most certainly put your ideas on a roadmap for implementation. So hopefully you will see the “start up on log in” and custom units soon! 

Again, thank you 🙏

### 5/5 — Solid app

*2024-05-17*

This app does exactly what I need it to do. Highly recommended!

**Developer response:** Awesome 😎

### 4/5 — Excellent!

*2024-02-27*

After using this app and comparing its calculations to my own, I couldn't believe how many small errors I had unknowingly made in the past.

Thank you for your work and for providing this great app to those of us who aren't so great with hand calculators.

**Developer response:** Awesome - glad to hear it 👍

### 5/5 — Finally a useful converter

*2023-01-24*

I'm not a big reviewer, but I had to this time. Oh my god how hard was it to do what this program does? Thank you. I work alot with CAD modeling real world objects as an Industrial Designer. Being from the States I'm always converting between decimal inch and metric. The fact that I can create multiple conversion "rows" for an X, Y and Z axis for example is a GODSEND. I cant count how many times I've converted something, then did a second conversion then forgot the first one. Funny to be  so excited about a converter. Bravo

**Developer response:** We are happy it’s making your life easier - that was always the goal! Thank you for taking the time to write to us.

### 5/5 — Fantastic! The only thing that needs to change is the icon!

*2022-11-12*

While the icon is not blending well my macOS Environment, I do often find myself using this, and really enjoy it. It does the job really well.

**Developer response:** Thank you, glad to hear it. We agree about the icon - it was updated in the latest version of the app, so should look a lot better now. Thank you for the feedback :)

### 5/5 — Nice and simple

*2022-10-21*

No ads. Easy to use
No fancy graphics. Sweet

**Developer response:** Right on! Thank you 👍

### 5/5 — SImple but powerful

*2022-09-25*

This app looks really simple, but it has ALL the engineering units that I need, even the ones that other apps don't have. The "favorites" functionality is great, as is the ability to evaluate simple math expressions. This is the perfect unit converter for an engineer.

**Developer response:** Thank you very much 👍

### 5/5 — Best unit conversion app

*2022-05-01, version 2.2*

By far the best and easiest to use unit conversion app!

## Frequently asked questions about Unit Convert

### Does Unit Convert have ads?

No, Unit Convert is completely ad-free. The app is designed to provide an uninterrupted conversion experience without any advertisements or banners.

### Is Unit Convert free to use?

Yes, Unit Convert is available for free. There are no charges to download or use its core conversion functionalities.

### Can I use Unit Convert offline?

Yes, Unit Convert is built to work 100% offline. All conversion engines are available without an internet connection, making it reliable for any location.

### What devices does Unit Convert support?

Unit Convert is available on Mac, iPhone, iPad, and iPod. It is designed to be accessible across Apple's ecosystem.

### How does Unit Convert handle custom units?

Unit Convert allows you to create your own custom units. This feature helps personalize the app for specific conversion needs, such as for baking or specialized industrial tasks.

### What is the age rating for Unit Convert?

Unit Convert has an age rating of 4+. This indicates it is suitable for a wide range of users, including children.

### How accurate are the fractional inch conversions in Unit Convert?

Unit Convert offers precise fractional inch conversions with selectable accuracy, down to 1/16" or finer. It can also convert between feet-inches and metric units with high precision.

### When was Unit Convert last updated?

The latest version of Unit Convert was updated on March 7, 2026. The app is actively maintained to ensure its functionality and features remain current.

## Version history (last 5 releases)

### 6.0 — 2026-03-07

New feature - create custom units.
Bug fixes, stability and style improvement.

### 5.1 — 2025-12-08

New units in category Length (Shaku, Ken Chi, Cun) Temperature (Gas Mark) Area (tatami mat). Performance improvements.

### 5.0 — 2025-07-07

Add units of centiseconds, decisecond.
Prefomance improvements.

### 4.3 — 2025-03-03

Add AED currency (Dirham), add metric horse power (PS) to Power category, add more units of Illuminance.
Performance improvements.

### 4.2 — 2024-03-18

Fix critical bug that would cause crash for purchased currency rates.

## Apps similar to Unit Convert

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GlobeConvert Currency & Units](https://appshunter.io/ios/app/globeconvert-currency-and-units/id334851202) | 4.8 (78,904) | Free | Utilities |
| [iConvert - Unit and Currency](https://appshunter.io/ios/app/iconvert-unit-and-currency/id408263181) | 4.9 (336) | $2.99 | Utilities |
| [Unit Converter Currency Rate](https://appshunter.io/ios/app/unit-converter-currency-rate/id1557869688) | 4.6 (187) | Free | Utilities |
| [Morpho Convert Currency & Unit](https://appshunter.io/ios/app/morpho-convert-currency-and-unit/id1494942612) | 4.7 (166) | Free | Utilities |
| [Exchange, Currency & Cryptos](https://appshunter.io/ios/app/exchange-currency-and-cryptos/id1360648699) | 4.6 (356) | Free | Utilities |
| [Universal Converter!](https://appshunter.io/ios/app/universal-converter/id6448482217) | — | Free | Utilities |

## More apps by Nikolay Khotenko

- [Steel Pipe](https://appshunter.io/ios/app/steel-pipe/id1517543497)

All apps by Nikolay Khotenko: https://appshunter.io/developer/1515869956

## Related topics

[convert measurements](https://appshunter.io/ios/topics/convert-measurements)

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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 2026-07-07.*