Barometer & Altimeter: HowHigh
No in-app products collected for this app.
| Rating | |||
|---|---|---|---|
| United States | 47%25 | 2.32 | |
| United Kingdom | 13%7 | 2.14 | |
| China | 6%3 | 5.00 | |
| Australia | 4%2 | 5.00 | |
| Canada | 4%2 | 3.00 | |
| Germany | 4%2 | 4.50 | |
| Poland | 4%2 | 5.00 | |
| Dominican Republic | 2%1 | 1.00 | |
| France | 2%1 | 5.00 | |
| Croatia | 2%1 | 5.00 | |
| India | 2%1 | 4.00 | |
| Italy | 2%1 | 5.00 | |
| Mexico | 2%1 | 1.00 | |
| Netherlands | 2%1 | 5.00 | |
| Norway | 2%1 | 2.00 | |
| Saudi Arabia | 2%1 | 1.00 | |
| Sweden | 2%1 | 1.00 |
Description
HowHigh is a free barometer and altimeter toolkit for following altitude and air-pressure changes. See live readings, record sessions, and compare history on iPhone and iPad—without a subscription.
USE HOWHIGH TO:
View live pressure, altitude, rate of change, elevation gain, and sea-level adjustments.
Record hikes, climbs, hills, stairs, weather observations, and experiments.
Review session history, compare recordings, and explore interactive charts.
Share results or export recorded data as CSV.
Choose manual calibration, optional WeatherKit calibration, or nearby NWS station calibration where supported.
See the active measurement source and sensor-confidence context alongside each reading.
Switch between metric and imperial units.
Your recorded sessions stay on your device until you choose to share or export them. Core readings and saved history remain available offline; online calibration sources require a connection.
HowHigh is designed for everyday observation and exploration. It does not replace certified instruments or safety-critical guidance.
Track how altitude and air pressure change over time—all core features are free.