Barometer: Pressure & Altitude

Barometer is the most accurate barometric pressure tracker, altimeter, and weather change predictor for Android. Read live atmospheric pressure in hPa, mb, mmHg, or inHg in seconds.

Whether you forecast weather changes, track altitude on a hike, or monitor pressure for fishing, hunting or migraine prediction — Barometer turns your Android phone into a precision weather station.

▶ MAIN FEATURES
• Live atmospheric pressure (hPa, mb, mmHg, inHg, atm)
• Pressure-based altimeter in meters or feet
• 3-hour pressure trend with rising / falling / stable indicator
• Storm and weather-change forecast hint
• Sea-level pressure calibration with location auto-detect
• Min / max / average pressure readings
• Pressure history graph — last 24 hours
• Real-time barometer needle gauge with smooth animation
• Dark mode for outdoor use
• Works fully offline — no account needed

▶ HOW TO USE
1. Open Barometer and grant location permission for sea-level correction
2. Read live atmospheric pressure on the dial
3. Tap the value to switch units (hPa / mmHg / inHg)
4. Watch the 3-hour trend and history graph for storm prediction

▶ WHO USES BAROMETER
• Hikers and mountaineers tracking altitude without GPS battery drain
• Pilots and paragliders cross-checking barometric altitude
• Anglers and hunters reading weather and pressure for activity
• Weather hobbyists and storm chasers watching front passages
• Sailors and boaters reading marine pressure
• HVAC technicians and students measuring pressure
• Migraine sufferers monitoring pressure-drop triggers

Requires a device with a barometric pressure sensor.