# Unit Converter ∞ — The Best Unit Converter

> Extensive unit converter with custom units and a large database. (iPhone/iPad app by Incpt.Mobis.)

- Source: https://appshunter.io/ios/app/unit-converter/id539102182 (this page in markdown: same URL + `.md`)
- Developer: [Incpt.Mobis](https://appshunter.io/developer/445261166)
- Category: Utilities, Productivity
- Price: $2.99
- Rating: 4.40/5 from 244 App Store ratings · 330 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 19 MB
- Languages: American English, French (France), German (Germany), Japanese, Brazilian Portuguese, Chinese (Simplified, China), Mexican Spanish, Chinese (Traditional, Taiwan)
- Released: 2012-08-14
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/unit-converter/id539102182/reviews.md

## What is Unit Converter ∞?

Forget what you know about common Unit Converters. Undoubtedly, Converter ∞ (Infinity) offers unique features & greatly new user experience!!!

◉ Featured: Converter ∞ greatly supports huge Database with 50 available categories and over 1000 units (Include mixed unit such as ft + in, m + cm,...) so Converter ∞ can help you solve almost every conversion problem in your Work, your Study and also your daily life.  You can, moreover, add your regular conversion to Favorite Section so that your conversion task would be as fastest as ever!
◉ Perfect Design: Converter ∞ has a shape of arc combined with sci-fi style offering convenient & interesting user experience.
◉ Ultimate Converter: More than a normal Unit Converter, Converter ∞ can help create your self–made conversion units to the converter. It makes your converter become Unlimited !!!

◉ Official Website: Http://iPhoneCalculator.com

◉ Features:
▸ Support Widget
▸ Universal Converter App
▸ 50+ Categories &1000+ Units
▸ Currency(Money) Exchange ¹
▸ Price Conversion
▸ Luminous Conversion
▸ Retina Display Support ²
▸ Global Favorite Section
▸ Category Favorite Section
▸ Create your own unit
▸ Turn On/Off Units
▸ Turn On/Off Categories
▸ Mixed-unit Support
▸ Fraction(Mixed) Support
▸ Scientific Calculator
▸ Support Widget
▸ Online DB Update
▸ Online Update Currency Rate ³
▸ Online Tutorial & Documents.

◉ Featured Conversion:
▸ Mixed Unit Conversion: Met - Ft + In.
▸ Fuel Consumption: Km / Lit - Mil / Gal.
▸ Price Conversion: USD / Gal - EUR / Lit.
▸ Luminous Conversion Tool: Convert Among
Luminous Flux, Intensity and Apex Angle.
▸ Electrical Conversion Tool: Convert Among
Electric Current (A), Power (W), Voltages (V). 

¹: Source: Yahoo! Finance (85 Currencies)
²: All iPhone (Incl. 7/7+) / iPad Retina Display
³: Manual & Hourly Auto Update.
New Data Base Update available weekly.
No Ads & High Performance.

◉ Categories:
Length, Area, Volume, Mass, Acceleration Linear,
Acceleration Angular, Angle, Calorific Value, Data,
Capacitance,Conductance,Conductive, Currency,
Data Transfer, Density Common, Electric Field,
Energy, Entropy, Force, Fuel Consumption,
Heat Capacity, Heat Flux Density, Illumination,
Inductance, Linear Charge Density, Luminance,
Linear Current Density, Magnetic Flux Density,
Moment Inertia, Power, Pressure, Radioactivity,
Radiation Absorb Dose (Rate), Resistance, Price,
Resistivity, Speed, Surface Tension, Torque,
Time, Thermal Conductivity / Resistivity,
Thermal Expansion, Typography, Temperature
Velocity Angular, Viscosity Dynamic / Kinematic,
Volume Flow Rate, Volume Dry.

## Key features

- 50+ Categories & 1000+ Units
- Create your own unit
- Mixed-unit Support
- Currency Exchange
- Price Conversion
- Widget Support

## What do users think of Unit Converter ∞?

Overall sentiment: positive

**Pros**

- 🚀 Comprehensive unit conversions
- 👍 Visually appealing interface
- 💡 Highly customizable
- 🚀 Powerful and accurate

**Cons**

- 🐛 Occasional crashes or bugs
- 👎 Steep learning curve
- 👎 Confusing or non-intuitive navigation
- 🕰️ Slow performance on older devices

**Commonly reported bugs**

- Incorrect unit conversions for some measurements
- Compatibility issues with newer iOS versions

**Most requested features**

- Add support for more currencies
- Improve search and navigation
- Provide a list-based interface option
- Add a number base converter

## Recent user reviews (10 of 330)

All indexed reviews: https://appshunter.io/ios/app/unit-converter/id539102182/reviews.md

### 5/5 — Please update!!!

*2026-05-22, version 2.2*

I recent discovered this app. I have tried many many different unit converters, and this one is the “coolest” by far. 

The only issue is that it hasn’t been updated in like 8 years. Still works mostly, but will not update currency or database. 

To the Dev, I see you are updating your calculator app, so please devote a small bit of time to just bring this app up to date. It would be a shame for a converter as unique as this one to just fade away!

Please consider! 🙏

### 3/5 — Abandoned

*2025-11-15, version 2.2*

This is a good app, except it has been abandoned. No updates have been made and the currency converter is no longer usable since it cannot be updated.

### 5/5 — Wonderful!

*2024-03-02*

The only app you may need. Just beautiful!

### 3/5 — It’s okay, overcomplicated

*2023-10-11, version 2.2*

It is thorough, with even obscure units to convert, so that’s good. But, there’s so much there that it just takes too long to find the units that you need, and the actual interface is very non-intuitive. Opening a Chrome window and letting google do the conversion is much faster/easier. But hey, it was only $1 added to the scientific calculator, which I actually like a lot.

### 5/5 — Very good - but missing the basics!

*2023-08-06, version 2.2*

This is a very comprehensive unit converter which I’ve not found to be wrong. It has some highly unusual units but seems to cater to the US market. Why no English miles?
And, it lacks a number base converter which would complement the calculator extremely well. Instead I tend to reach for Excel to convert numbers of differing base.
Worthy of 5 stars but could be improved!

### 5/5 — 기합!

*2023-04-07*

정말 오도 짜세스러운 앱입니다

### 5/5 — The best app to convention

*2023-01-13, version 2.2*

This app it’s my favorite to use on my work, after years using I did pay finally for bundle apps from this creator

### 5/5 — Great converter

*2022-08-14, version 2.2*

Very unusual but fun to use

### 5/5 — Great

*2022-05-13, version 2.2*

Great app

### 5/5 — King of Conversion Apps

*2022-01-17, version 2.2*

I have been a full user of Converter Infinity since it inception. As an Engineer, I find it very useful, especially in combination with PCalc. Setting up favorites is easy and very useful. I would recommend this app to anyone.

## Frequently asked questions about Unit Converter ∞

### What does Unit Converter ∞ do?

Unit Converter ∞ is a powerful application designed to perform a vast array of unit conversions. It boasts a large database with over 1000 units spanning more than 50 categories, including support for mixed units and the ability for users to create their own custom units.

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

Key features include support for over 50 categories and 1000 units, the ability to create custom units, mixed-unit conversion, currency exchange, price conversion, and widget support. It also offers a unique user interface and online database updates.

### Is Unit Converter ∞ free to use?

Yes, the application is available for free. It does not feature advertisements or in-app purchases, providing a seamless and uninterrupted user experience for all conversion tasks.

### What kind of conversions can I perform?

You can perform a wide variety of conversions, including length, area, volume, mass, currency, fuel consumption, and electrical conversions. The app also supports specialized conversions like luminous and price conversions, and can handle mixed units such as feet and inches.

### What devices is Unit Converter ∞ compatible with?

The app is a universal converter app and supports Retina Display, indicating compatibility with iPhones and iPads. It also features widget support, allowing for quick access to conversion functions.

## Version history (last 5 releases)

### 2.2 — 2017-11-28

This update from Apple will improve the functionality of this app. No new features are included.

▸ Currency Converter Fix

### 2.0 — 2017-03-08

◉ BIG UPDATE Version 2.0:
▸ Support Widget
▸ Support more categories, units & Tool
▸ App size optimization
▸ Bugs fixes.

### 1.7 — 2016-02-08

▸ Support Shortcut Menu
▸ New Units & Currencies
▸ Bug Fixes
▸ Stability Improvement

### 1.6 — 2015-04-27

▸ Support ARM 64
▸ Additional New Units
▸ New Electrical Tool (W, V, A, Ω)
▸ Minor Bugs Fixed

### 1.5 — 2014-11-06

▸ iOS8 Compatible
▸ Support iPhone 6+
▸ Additional New Units
▸ Minor Bugs Fixed

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## More apps by Incpt.Mobis

- [Calculator #](https://appshunter.io/ios/app/calculator/id458535080)
- [Calculator ∞](https://appshunter.io/ios/app/calculator/id458535809)
- [Currency & Unit Converter #](https://appshunter.io/ios/app/currency-and-unit-converter/id539104872)
- [Textist - Colorful Vivid Text!](https://appshunter.io/ios/app/textist-colorful-vivid-text/id1153412215)
- [Graphing Calculator X84](https://appshunter.io/ios/app/graphing-calculator-x84/id1247828717)

All apps by Incpt.Mobis: https://appshunter.io/developer/445261166

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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 2026-08-26.*