This application converts 264 units from following 34 categories
Acceleration
Angle
Area - Intl & Survey
Density
Electricity
Energy
Force
Frequency
Flow - Power & Volume
Information Entropy
Length - Intl & Survey
Luminescence
Mass
Number
Magnetism
Pressure
Temperature
Time
Torque
Velocity
Viscosity
Volume - Dry & Liquid
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Call feature to support from iPhone