# Barometer & Altimeter: HowHigh — Elevation tracker & charts

> Precision barometer and altimeter for live readings, logging, and analysis. (iPhone/iPad app by Thirty Seven Inc..)

- Source: https://appshunter.io/ios/app/barometer-and-altimeter-howhigh/id921339656 (this page in markdown: same URL + `.md`)
- Developer: [Thirty Seven Inc.](https://appshunter.io/developer/554594255)
- Category: Utilities, Navigation
- Price: Free
- Rating: 2.30/5 from 25 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 7 MB
- Languages: American English, Arabic, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2014-10-01
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/barometer-and-altimeter-howhigh/id921339656/reviews.md

## What is Barometer & Altimeter?

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.

## Key features

- Dual barometer and altimeter dashboards
- Real-time pressure and elevation readings
- Session recording with rich datasets
- Interactive Swift Charts for analysis
- Automatic device calibration
- Optional WeatherKit sea-level calibration

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/barometer-and-altimeter-howhigh/id921339656/reviews.md

### 5/5 — Oh wow what a great app

*2026-02-17, version 1.3.1*

This app is prefect for what I need. The app creator is so quick to update the app. I liked the idea of a “screen always on” and an option to hide the graph and within days the app had been updated to reflect this. Brilliant app !!!

### 4/5 — keep updated app is getting better

*2026-02-08*

Updated and improved flow and functionality is imported 

intuitively is a goal 

suggestion 
better explaining section of how and why calibration is important..

more increased understanding of the app
navigation..

In an app it is just not function
it is interface and user experience and user understanding the flow 

This could be a swipe example use instructions

### 5/5 — Accurate and Easy to Use

*2025-10-24*

HowHigh is the most accurate and easy to use barometer and altimeter app out there. Super user friendly and really helpful!

### 5/5 — So cool!

*2025-10-01*

Recently used this on a hike and it was so cool and easy to use!

### 1/5 — Doesn’t work on ios17 or 18

*2025-01-26, version 1.0*

Needs fixing. Doesn’t interact with The Barometer in iOS 17. Still broken in iOS 18.

### 1/5 — Doesn’t work on ios17

*2024-04-28*

Needs fixing. Doesn’t interact with The Barometer in iOS 17.

### 1/5 — Don’t use this

*2020-08-20*

It don’t work it’s a waste of time

**Developer response:** I have since completely rewritten the app. Would you mind reevaluating your 1 star review? It would really help my rating! 🙏

### 5/5 — Works well

*2020-08-09, version 1.0*

Work when I lift it as tallness I can 
Still works

### 1/5 — literally did nothing

*2020-06-23, version 1.0*

i tried it it kept on saying 0,0

### 1/5 — Do not recommend

*2020-01-12*

This doesn’t work

## Frequently asked questions about Barometer & Altimeter

### What is HowHigh?

HowHigh is a utility app that transforms your iPhone or iPad into a precise barometer and altimeter. It offers live readings, log recording, and historical analysis of pressure and elevation data.

### Does HowHigh have ads?

No, HowHigh is ad-free, providing an uninterrupted user experience for tracking atmospheric pressure and altitude.

### What devices does HowHigh support?

HowHigh is designed for universal support and is optimized for both iPhone and iPad, including features like Split View and Dynamic Type.

### How does HowHigh calibrate its readings?

HowHigh features automatic device calibration to ensure trustworthy readings. It also offers optional WeatherKit sea-level calibration and a sensor confidence indicator.

### Can I record my adventures with HowHigh?

Yes, HowHigh allows you to record sessions of your adventures or experiments, storing detailed datasets that you can replay later.

### How often is HowHigh updated?

The latest version of HowHigh is 1.3.3, which was last updated on February 19, 2026. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for HowHigh?

HowHigh has an age rating of 4+, making it suitable for a wide range of users interested in its utility features.

### How does HowHigh handle user data?

HowHigh keeps your sessions safely on-device unless you choose to share or export them. iCloud sync is not required for session storage.

## Version history (last 5 releases)

### 1.4.2 — 2026-08-23

HowHigh 1.4.2 makes Apple Watch even more useful:
- Add the new atmospheric pressure complication to see current pressure, trend, units, and freshness at a glance.
- Complications refresh more responsively while remaining battery-conscious.
- Improved freshness handling clearly marks outdated readings.
- Additional reliability and polish throughout the app.

### 1.4.1 — 2026-08-15

HowHigh 1.4.1 keeps your measurements within reach:
- Continue a recording session while the screen is locked, with clear interruption and recovery states.
- Follow an active session from the Lock Screen and Dynamic Island.
- See current readings in Home and Lock Screen widgets.
- Use the Apple Watch app and complication for glanceable readings and session controls.
- Refined settings, localisation, accessibility, and privacy controls.

### 1.4.0 — 2026-08-07

HowHigh 1.4.0 makes measurements easier to understand and compare:
- New onboarding and clearer calibration guidance.
- Measurement-source and sensor-confidence context.
- Improved session history, comparisons, sharing, and CSV export.
- Refined charts, insights, navigation, settings, and accessibility.

### 1.3.3 — 2026-02-19

Fixed keep-screen-on behavior so the display now stays on reliably during use.

### 1.3.2 — 2026-02-18

New in this update:
- Fixed an issue where Keep Screen On could still allow the display to sleep.
- Improved screen-awake reliability when switching tabs or returning to the app.
- Improved support for iOS Dynamic Type so text scales more gracefully across screens.

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All apps by Thirty Seven Inc.: https://appshunter.io/developer/554594255

## Related topics

[how high](https://appshunter.io/ios/topics/how-high)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*