# Altimeter (Barometer) Free

> Measures elevation using GPS or barometer, with calibration and unit options. (iPhone/iPad app by Piet Jonas.)

- Source: https://appshunter.io/ios/app/altimeter-barometer-free/id1173490106 (this page in markdown: same URL + `.md`)
- Developer: [Piet Jonas](https://appshunter.io/developer/288060167)
- Category: Travel, Navigation
- Price: Free
- Rating: 2.67/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 5 MB
- Languages: English
- Released: 2016-11-08
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/altimeter-barometer-free/id1173490106/reviews.md

## What is Altimeter (Barometer) Free?

This altimeter either uses GPS or the built in barometer (available since iPhone 6) to determine your current elevation on earth. While GPS provides the absolute altitude as long as you see the sky it is not very accurate. With the help of the barometer we can calculate the altitude indoors and outdoors with a much higher accuracy. But we need a reference altitude to calibrate the barometer altitude. This calibration will degrade over time as the air pressure changes with the weather.

Features:
- GPS and barometer based altitude
- set a base altitude as starting point and get the altitude difference (e.g for hiking or biking)
- calibrate the barometer altitude (connect the current air pressure to your current altitude)
- calibrate with the help of GPS, the standard sea level air pressure or to any altitude you want
- time difference to the last calibration
- warning when it is time to calibrate
- switch between metric and imperial units

Ad supported freeware

## Key features

- GPS and barometer altitude
- Set base altitude for difference
- Barometer calibration
- Metric and imperial units
- Calibration warning

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/altimeter-barometer-free/id1173490106/reviews.md

### 5/5 — This app altimeter came out since the iPhone 6

*2024-02-17*

This app is nice and it works on iPhone 6 7 8 X and more

### 2/5 — Not the best

*2017-01-31*

Didn't fully work on iPhone 6s. Worked when set to GPS height but not when set to device.

## Frequently asked questions about Altimeter (Barometer) Free

### What is the accuracy of Altimeter (Barometer) Free?

The app uses GPS for absolute altitude, which is less accurate, and the device's barometer for higher accuracy, especially indoors. Barometer accuracy relies on proper calibration due to changing air pressure.

### How do I calibrate Altimeter (Barometer) Free?

You can calibrate the barometer altitude by connecting the current air pressure to your current altitude. Calibration can also be done using GPS, standard sea level air pressure, or any desired altitude.

### Does Altimeter (Barometer) Free have ads?

The app is described as ad-supported freeware, meaning it contains advertisements.

### What units does Altimeter (Barometer) Free support?

You can switch between metric and imperial units within the app to display altitude measurements.

### Can Altimeter (Barometer) Free track elevation difference?

Yes, you can set a base altitude as a starting point and the app will provide the altitude difference, which is useful for activities like hiking or biking.

### What devices is Altimeter (Barometer) Free compatible with?

Altimeter (Barometer) Free is supported on iPhone, iPad, and iPod devices.

### When was Altimeter (Barometer) Free last updated?

The app was last updated on November 8, 2016, with version 1.0.

### What is the user rating for Altimeter (Barometer) Free?

The app has a rating of 2.7 stars based on 3 user ratings.

## Version history (last 1 release)

### 1.0 — 2016-11-08

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Altimeter (Barometer) Free

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Altimeter & Barometer](https://appshunter.io/ios/app/altimeter-and-barometer/id541514339) | 4.6 (128) | Free | Travel |
| [Altimeter - Altitude & Compass](https://appshunter.io/ios/app/altimeter-altitude-and-compass/id1295577015) | 4.6 (8,450) | Free | Travel |
| [Altimeter - i](https://appshunter.io/ios/app/altimeter-i/id905216286) | 4.7 (92) | Free | Travel |

## More apps by Piet Jonas

- [Game Counter](https://appshunter.io/ios/app/game-counter/id288060164)
- [Workout](https://appshunter.io/ios/app/workout/id288240647)
- [Compass](https://appshunter.io/ios/app/compass/id288420566)
- [Contact Find](https://appshunter.io/ios/app/contact-find/id290153951)
- [Thesaurus App](https://appshunter.io/ios/app/thesaurus-app/id291362860)
- [Baseball Games](https://appshunter.io/ios/app/baseball-games/id291533429)

All apps by Piet Jonas: https://appshunter.io/developer/288060167

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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 2026-06-01.*