A simple, user-friendly and accurate ruler for your phone!

This is a paid version to support thedeveloper, a free (identical, without ads) version is available onthe Play Store!A simple, user-friendly and accurate ruler for your phone!Use a coin or a credit card to calibrate the ruler anywhere,when you don't have a real ruler with you!- Ad free, for real, forever!- Pick your units: fractional inches, decimal inches, centimetersor millimeters- Calibrate your ruler with a credit card to get you startedanytime, anywhere- Don't have a credit card with you? Calibrate your ruler with acoin!- Calibrate your ruler with a real ruler to achieve the bestprecision in your measurement transfers- Manually set the ruler to a known length for accuratemeasurements- Night mode to save battery (on AMOLED screens) and to relieveyour eyes at night- Save your measurements for future use- No permission requiredUpdate history:3.5 -- Millimeters, set to predefined length3.3 -- Calibrate with a credit card, remove saved measurements fromhistory3.2 -- Fractional display of measurements in inches3.0 -- Android Material theme and new scale for measurements ininches2.1 -- Calibrate with a coin, default calibration button(reset)2.0 -- You can now save your measurements1.7 -- Night mode to save battery and/or read more easily atnight1.6 -- Added default calibration for common devices (Nexus series,Galaxy S series, Galaxy Note 1, 2 and 3)

Audio feedback to improve speech quality.