Altimeter Barometer

Altimeter Barometer — Turn your phone into a real air pressure meter and altimeter.

Read the actual atmospheric pressure from your phone's built-in barometer sensor, then estimate your altitude using the international standard atmosphere formula. Perfect for hiking, trekking, drone flying, weather watching, camping, and fishing.

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Who it's for

• Hikers & trekkers — track elevation as you climb
• Drone & aviation hobbyists — check air pressure before flight
• Weather watchers — spot pressure trends that hint at incoming weather
• Campers & anglers — monitor conditions outdoors

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Key features

[Real air pressure]
• Live reading from your phone's barometer sensor (not a fake estimate)
• Units: hPa, mbar, inHg, mmHg

[Altitude estimate]
• Calculated from measured pressure
• Adjustable sea-level pressure (QNH) for better accuracy
• Switch between meters and feet
• Note: pressure-based estimate — may differ from GPS altitude

[Pressure trend]
• See whether pressure is rising or falling
• Rising tends toward fair weather, falling toward clouds or rain (guide only)

[Records]
• Max / min / current pressure with one-tap reset

[Clean design]
• Material Design 3, light & dark themes
• 37 languages supported

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⚠️ Requires a barometer sensor

This app reads real atmospheric pressure, so it needs a device with a built-in barometer (pressure) sensor. Many mid-to-high-end phones include one, but some budget devices do not. If your device has no barometer, the app will tell you clearly instead of showing fake values.

Download now and measure the air around you.

Recent changes:
Traditional Chinese devices (Taiwan, Hong Kong) now open in Traditional Chinese. Minor stability improvements.