Supported Features
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VoiceOver
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Dark Interface
OmniUnits: Unit Converter
Presets, Formulas & Widgets
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Convert faster. Search less. Get more done.
OmniUnits is the unit converter that adapts to your workflow – not the other way around. Instead of endless lists and table-scrolling, you get structured, reusable conversion setups saved as presets and launched directly from your home screen via widgets.
WHY OMNIUNITS?
Custom Presets: Combine multiple units and categories into a single preset. Perfect for recurring tasks – whether 3D printing, lab measurements, or construction.
Build Your Own Formulas: The built-in formula editor handles complex expressions like l*π*pow(d/2;2)*ρ/1000. Define variables, choose units, and calculate instantly – no separate calculator needed.
Widget-First Approach: Configure widgets with your presets, favorite categories, or formulas. One tap from the home screen – and you’re right where you need to be.
35+ Unit Categories: From length, mass, and temperature to pressure, torque, and flow rate – all the way to magnetic fields, radioactivity, and currencies.
Professional Precision: Control decimal places, scientific notation, and rounding – exactly how you need it.
Conversion History: All calculations are saved and easy to look up.
Full VoiceOver Support: OmniUnits is completely accessible.
WHO IS OMNIUNITS FOR?
Engineers & technicians who work with different unit systems daily. Students & scientists who need quick formula evaluation. Construction workers who need on-site conversions. Anyone who needs a reliable, fast conversion tool in everyday life.
OmniUnits is free to use (limited amount of conversions per month). Unlock unlimited conversions, more presets, widgets, and formulas with OmniUnits Pro.
Download OmniUnits now and experience unit conversion the way it should be: fast, structured, to the point.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Florian Lenk, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Florian Lenk
- Size
- 9.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Italian, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- OmniUnits Pro $2.99
- OmniUnits Plus $1.99
- OmniUnits Pro $3.99
- Copyright
- © 2026 Florian Lenk