UnitCal app for iPhone and iPad

UnitCal is a simple way to convert between units on iphone.
-6 theme colors for selection.
-Built-in calculator with support 4 operations. No need to switch to the Calculator app.
-Long press gesture to copy & paste you converted result
-Instant conversions in one screen.

Hundreds of units across 21 categories
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Here is the list of categories:
- Area
- Angle
- Data storage
- Data transfer
- Density
- Energy
- Flow rate
- Force
- Frequency
- illuminance
- Length
- Power
- Pressure
- Radioactivity
- Speed
- Temperature
- Time
- Torque
- Typography
- Volume
- Weight


If youre going to download UnitCal, please rate and leave a comment!
If you have a suggestion dont hesitate to contact me. With your suggestion I can improve UnitCal more!
Thank you for your time. :)