OmniConvert is a powerful unit and currency converter focused on functionality, usability, and speed. It is completely free, supports a wide variety of conversion categories, and works offline. Exchange rates are updated in real-time (when connected to the internet) and all 166 major world currencies are supported. There are no conversion limits or size restrictions, and it even comes with a dark mode!
OmniConvert offers an additional selection of useful calculators (e.g. salary, gratuity, baking) along with compilations of common scientific constants relevant to fields like physics and chemistry.
Conversions:
Currency, Volume, Mass, Temperature, Time, Length, Speed, Gas, Area, Energy, Pressure, Torque, Data, Angle, Frequency, Planetary Weight
Calculators:
Salary, Tip, Baking, Percentage, Mortgage, Auto Loan, BMI
Constants:
Chemistry, Physics, Density, Unit Prefix, Mathematics, Medicine, Astrophysics.
Omniconvert is optimized for iPhone X, 11, 12, 13, 14, 15, and 16 as well as the Pro and Max variants of these devices.
I really appreciate the layout and design of this app. I’ve downloaded similar apps before for unit conversions or salary calculators but they were clunky and overwhelming; this is app is easy to use and easy to look at. I also enjoy the favoriting-feature so I can move most commonly used ones to the top.
Most Useful Conversion app
leekeo
Being in the military I have had to use conversions a surprising amount but using this app I can convert anything I need in an instant! This is extremely useful and I highly recommend people to get this!
Great app for bakers!
seedot28
I love baking and this app is super helpful to convert recipe amounts for any occasion. I love the easy-to-use screen layout and also how I can ‘Favorite’ my most-used conversions. Would most definitely recommend downloading!
Best Converter App For iOS
unhappy reddit user
This app blows the others out of the water. Clean, minimal, and effective design. I like the timestamp signifying when currency rates were last checked. Extremely useful during foreign travels!
Once again... long time no see! Since my last update, I've switched companies and finalized plans to move overseas. OmniConvert 4.0 includes some changes that I think everyone will be happy about.
For the free users - ads are now gone! I don't think the incoming ad revenue justified the annoyance I'm sure they imposed for the average user, so I got rid of them.
For the pro users, there are two new pro-only conversions (Angle + Frequency) and one new calculator (BMI).
I've also made some app-wide improvements and bug fixes that should improve everyone's experience. You can also (finally) reorder your favorites!
Version 4.0.0
The developer, Jonathan Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Jonathan Chen
Size
37.1 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
iPad Requires iPadOS 17.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.