Calculate barometric pressure using mercury barometer measurements. Input meniscus heights, instrument temperature, and gravitational acceleration. Convert between pressure units and display results.
by Michael Matus★ 4.01 ratingsUtilitiesFreeData updated 2026-09-12
Measure atmospheric pressure and altitude using built-in GPS and pressure sensor. Automatically calibrate readings with local meteorological station data. Display current pressure and elevation levels. Save historical data for reference.
Calculates air density, relative humidity, and air pressure automatically. Displays geographic position, temperature, dewpoint, elevation, and barometric pressure. Supports airport and manual input modes.
Provides GPS altitude and pressure altitude readings. Displays speed in kph, mph, and knots. Measures barometric pressure in multiple units. Tracks acceleration in G forces. Shows location, magnetic, and true heading.
Measure atmospheric pressure using the device's barometric sensor. Determine elevation with GPS-based altimeter. Access a ruler, surface level, metronome, stopwatch, timer, and seismometer. Includes flashlight.
Determine using GPS, barometer, or location input. View data on interactive maps. Access real-time altitude readings. Compare changes across locations. Save and share measurements.
Measure atmospheric pressure and altitude. Switch between pressure units like hPa, mmHg, and inches of mercury. Display real-time readings and track changes over time.
Monitor atmospheric pressure with sea level adjusted readings. View pressure charts and select from 20 background colors. Display pressure in multiple units including hPa, inHg, and kPa. Compatible with various iPhone and iPad models.
Monitor and altitude using the device's internal sensor. Track changes to predict weather patterns. Provides altimeter readings for elevation awareness.
Displays current with minimum and maximum temperatures. Shows 72-hour and 10-day forecasts for global cities. Automatically detects location. Includes animated satellite maps with wind, rain, temperature, and cloud layers.
Tracks barometric pressure and altitude using device sensors. Records data continuously in the background. Displays interactive graphs for pressure trends over time. Supports auto-updating widgets for real-time weather insights.
Track and altitude without an internet connection. Receive alerts for rapid drops. Monitor altitude changes and weather patterns. Log data for later review. Sync measurements with other devices.
Calculate ballistic trajectories with detailed data including 4000 cartridges and 3300 reticles. Visualize trajectories, compare different cartridges, and adjust for barometric pressure, altitude, temperature, and wind.
The app provides a collection of 13 measuring tools and a flashlight. It includes a barometer, altimeter, compass, teslameter, metronome, stopwatch, timer, seismometer, plumb bob, surface level, spirit level, and ruler.
Monitor atmospheric using the device's sensor. Display current location and air . Show weather conditions based on readings. Allow manual input for calibration. Track changes over time.
The app provides 15-day and hourly weather forecasts, severe weather alerts, and radar images. It includes air quality, earthquake data, and tide predictions.