iUnits Converter vs CompisCalculator Pro

iUnits Converter: a handy converter for all the used units. Hundreds of units available, dozens of dimensions. Dimensions available: Acceleration Angle Area Concentration Mass Duration Electric Charge Electric Current Electric Potential Difference Electric Resistance Energy Frequency Fuel Efficency Information Storage Length Mass Power Pressure Speed Temperature Volume

CompisCalculator is a scientific calculator designed to boost you productivity and offer a more robust experience. •HISTORY: Calculations are saved in history to be used again later if needed. •REALTIME RESULTS: The calculator shows realtime results while typing •UNITCONVERTER: The unit can be used to convert different units like mass, volume and more. It also features a currency converter that updates every day. •CUSTOM BUTTONS: With the custom buttons feature you can save variables as your own button. You can also create custom function witch can be useful when working with •DATE CALCULATOR: Use the date calculator to measure the difference in time between two dates or times of day. •NO ADS: CompisCalculator is free from those enjoying ads. •IPAD OPTIMIZED: CompisCalculator is optimized for both iPad and iPhone and can take advantage of split screen and runs in both portrait and landscape orientations. •CUSTOMIZABLE LOOK: Make the calculator you own by changing the color. Choose one of the preset colors or get creative and choose the RGB values to get the exact color you want. •THOUSAND SEPARATOR: Thousand separator makes it easier to visualize the number. •HAPTIC FEEDBACK AND SOUND: Choose between different button sounds and haptic feedback styles or turn them of.