HowHigh: Barometer & Altimeter

HowHigh: Barometer & Altimeter

Live pressure & altitude logs

23 ratings
14 reviews
Free

Details

  • Released
  • Updated
  • October 1, 2014
  • February 19, 2026

Features

HowHigh: Barometer & Altimeter screenshot #1 for iPhone
HowHigh: Barometer & Altimeter screenshot #2 for iPhone
HowHigh: Barometer & Altimeter screenshot #3 for iPhone
iphone
ipad
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About

This app provides precise barometer and altimeter readings with live data, session recording, and historical analysis. It features automatic device calibration and supports various Apple devices and accessibility 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
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What's New in HowHigh

1.3.3

February 19, 2026

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

User reviews

Oh wow what a great app

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 !!!

keep updated app is getting better

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
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Accurate and Easy to Use

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

So cool!

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

Doesn’t work on ios17 or 18

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

Developer apps

FAQ

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.