Barometer: Pressure & Altitude

Barometer is a 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.