A definitive, easy-to-use unit and currency converter, for iPhone, iPod and iPad. It’s just like a web search: You can perform conversions by simply typing what you want to convert, in a single input, just like you do to search the web for years. It's also a complete and ultimate tool, providing more than 900 units and 170 currencies available for you.

You don’t really need to know what type of conversion you are going to do, as this app dynamically recognizes first letters and symbols. When hitting return, all possible conversions are shown, most likely matches first.


・Just type and convert
・Lots of units and currencies
・Exchange rates updated automatically
・Definitive conversion tool
・Significance Arithmetic
・Smartphone and tablet compatible


・Scientific Notation (E) accepted
・Significant figure rules can be configured for scientific/metrology results
・Results up to 12 significant figures
・Results shown with symbol and name
・Inverse conversions (such as speed & pace, density & specific volume, resistivity & conductivity...) are now available
・Copy and paste
・American and international English unit names, based on your current region
・Intelligent search: as you type, most likely units and currencies are presented
・As you type, symbols and names are accepted
・More than 50 types of units


・Acceleration (angular)
・Acceleration (linear)
・Amount of Substance
・Attenuation per Length (Loss of Power)
・Chemical Potential
・Computer Data
・Computer Data Rate
・Density of Heat Flow Rate / Sound Intensity
・Electric Charge
・Electric Conductance / Admittance
・Electric Current
・Electric Current Density
・Electric Dipole Moment
・Electric Inductance
・Electric Resistance / Impedance
・Electric Resistivity
・Electric Voltage
・Electric Capacitance
・Electric Conductivity
・Electric Permittivity
・Frequency / Speed (angular)
・Fuel Consumption
・Luminous Flux
・Luminous Intensity
・Magnetic Field Strength
・Magnetic Flux
・Magnetic Flux Density
・Mass / Weight
・Mass Flow Rate
・Power / Heat Flow Rate
・Pressure / Stress
・Radiation - Absorbed Dose
・Radiation - Exposure
・Radiation - source activity
・Ratio / Factor
・Second Moment of Area
・Solid Angle
・Specific Heat Capacity
・Specific Volume
・Speed / Velocity
・Temperature Gradient
・Temperature Rate
・Thermal Conductivity
・Torque / Moment of Force
・Viscosity (dynamic)
・Viscosity (kinematic)
・Volume Flow Rate


What’s New

Version 1.5.10

・Bug fixes
・Compiled using the latest iOS SDK

・Lots of new world currencies, it's now more than 170 total, including Bitcoin, Gold and Silver
・Currency accuracy improved by one-hour updates on exchange rates
・More units, new categories
・Performance improvement
・Ranking and prediction improvement
・Bug fixes

Ratings and Reviews

4.1 out of 5
18 Ratings

18 Ratings

jws185 ,

The Best

The best conversion app that I’ve seen.
Tremendous number of units with ease of entry.

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So many units to convert

App Privacy

The developer, Daniel Kunzler, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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