Protractor 1st

Have you ever forgotten your protractor at school or when you urgently look for a protractor to measure any kind of angles in real life? Then, Protractor 1st is a must-have tool in your pocket. More than that, it is not just a protractor, it is a CONVERTER! 1 degree equals to 0.0174 radian! Having to convert between degree and radian or vice versa, you will need a calculator next to you when using normal protractors. Protractor 1st deletes this annoyance by combining all angle units measurements in one finger point.

Features

• Measure angles in three different units: degree, radian, gradian and revolution
• Functioning as a converter by measuring pairs of units at the same time
• Customize pairs of units to display
• Instantly swapping units
• Directly input angles through an interactive keyboard
• Snapping ability with different sensitivities for each unit
• Lock and unlock modes
• Cool sound and animation effects
• Retinal ready, just more beautiful on retina iPhone and iPad
• Universal binary, download once and it runs beautifully both on iPhone and iPad