Protractor 1st

Protractor 1st

iOS Universal Utilities


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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.


- 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

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Protractor 1st is the 1st tool among many other professional tools in our flagship app "Multi Measures - The all-in-1 measuring toolkit"

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What's New

- Performance improvements and minor bug fixes.

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