Make use of the barometer in your smartphone.
Many new Android devices are now equipped with digital barometers to lower the time to first fix (TTFF) for the built-in GPS. Now you can use the data collected from that digital barometer to tell the atmospheric pressure and your current altitude using only your Android device.
Features include barometer, altimeter (supports calibration to altitude), digital barometer sensor information, and selectable pressure and altitude units.
Please email me for feature requests if you have a good idea!
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