# HgBarometer — The mercury companion

> Mercury barometer companion for pressure calculation and unit conversion. (iPhone/iPad app by Michael Matus.)

- Source: https://appshunter.io/ios/app/hgbarometer/id1234010346 (this page in markdown: same URL + `.md`)
- Developer: [Michael Matus](https://appshunter.io/developer/987936850)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 8 MB
- Languages: American English
- Released: 2017-05-11
- Data updated: 2026-06-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hgbarometer/id1234010346/reviews.md

## What is HgBarometer?

This app is an invaluable companion for users of mercury barometers. It is also of a highly didactical value for the understanding of barometric pressure related phenomena like different measurement units for this quantity.

When using an old-style mercury barometer one must determine the heights at the top and at the glass contact of the meniscus. Moreover, the instrument temperature as well as the gravitational acceleration at the site is needed to estimate the actual barometric pressure. In the past cumbersome tables or laborious calculations were needed to correct the various influence quantities. This app saves you from this trouble.

On selected devices you can compare the build-in altimeter with the calculated pressure value of the mercury barometer.

Features:
- Natural user interface.
- Choice between many different pressure units.
- Observations and results can be shared in various ways.
- May be used to calibrate your mercury barometer (or your iOS device, whichever you deem more accurate)

## Key features

- Simplifies mercury barometer pressure calculations
- Accounts for meniscus height, temperature, and gravity
- Supports multiple pressure units
- Facilitates barometer calibration
- Allows sharing of observations and results


## Frequently asked questions about HgBarometer

### What is HgBarometer used for?

HgBarometer is designed to assist users of mercury barometers by simplifying the complex calculations needed to determine barometric pressure. It accounts for factors like meniscus height, instrument temperature, and local gravitational acceleration.

### Can HgBarometer convert pressure units?

Yes, HgBarometer offers a choice between many different pressure units, making it easy to convert readings to your preferred measurement.

### Can HgBarometer help calibrate my barometer?

Yes, HgBarometer may be used to calibrate your mercury barometer or your iOS device, allowing you to ensure accuracy in your measurements.

### Does HgBarometer have ads?

No, HgBarometer is ad-free, providing an uninterrupted user experience.

### What devices does HgBarometer support?

HgBarometer is supported on iPhone, iPad, and iPod devices.

### What is the age rating for HgBarometer?

HgBarometer has an age rating of 4+, making it suitable for a wide range of users.

### How often is HgBarometer updated?

The latest version of HgBarometer is 1.6, and it was last updated on May 20, 2022. This indicates a moderate update frequency.

### What is the user sentiment for HgBarometer?

Based on the available data, HgBarometer has a rating of 4.0 stars from 1 rating, suggesting generally positive user sentiment.

## Version history (last 5 releases)

### 1.6 — 2022-05-20

- new measurement units added

### 1.5 — 2018-09-17

- more consistent appearance 
- fixed a bug for sharing data

### 1.4 — 2018-05-06

- Improved experience on iPhone X

### 1.3 — 2017-09-26

- Support for iOS 11
- Users can rate app without moving to App Store
- Share to Weibo improved

### 1.2 — 2017-06-09

- support of the build-in altimeter (on selected devices)
- increased temperature range
- improved documentation
- increased number of pressure units

## Apps similar to HgBarometer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [EleVte](https://appshunter.io/ios/app/elevte/id1095460846) | 3.2 (5) | Free | Utilities |
| [Barometer Deluxe](https://appshunter.io/ios/app/barometer-deluxe/id917360065) | 3.9 (10) | $0.99 | Utilities |
| [Sensoro Config Tool](https://appshunter.io/ios/app/sensoro-config-tool/id902437077) | — | Free | Utilities |
| [PressureConvert](https://appshunter.io/ios/app/pressureconvert/id1462698638) | — | Free | Utilities |
| [Barometer & Barograph](https://appshunter.io/ios/app/barometer-and-barograph/id930132585) | 2.3 (3) | $1.99 | Utilities |
| [JB Air Flow Test Companion](https://appshunter.io/ios/app/jb-air-flow-test-companion/id1472441857) | — | Free | Utilities |

## Related topics

[hgbarometer](https://appshunter.io/ios/topics/hgbarometer) · [free barometer app](https://appshunter.io/ios/topics/free-barometer-app)

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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 2026-06-25.*