# Barometer & Altimeter: HowHigh

> Elevation tracker & charts

Canonical page: [https://chrome-stats.com/d/id921339656](https://chrome-stats.com/d/id921339656)

## Overview

- **ID:** `id921339656`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Thirty Seven Inc.
- **Category:** Utilities
- **Rating:** 2.60 / 5 (28 ratings)
- **Version:** 1.4.2
- **Last updated:** 2026-08-23
- **First published:** 2014-10-01
- **Size:** 7.24 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/barometer-altimeter-howhigh/id921339656)
- **Website:** [https://37.technology/howhigh](https://37.technology/howhigh)
- **Privacy policy:** [https://www.37.technology/legal/privacy](https://www.37.technology/legal/privacy)

## Description

Free live altitude and pressure readings, session recording, charts, comparisons and CSV export—with calibration and sensor-confidence context.

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.

## Rankings

- #273,619 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id921339656)