# HgBarometer vs Barometer ∞ Pressure Altitude

The clearest difference is rating: Barometer ∞ Pressure Altitude at 5.0 against HgBarometer's 4.0. HgBarometer's advantage is ads (none vs shown) and update cadence (every 4 months vs every 10 months). On price, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Barometer ∞ Pressure Altitude holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

HgBarometer ships an update every 4 months, Barometer ∞ Pressure Altitude every 10 months. The most recent releases landed on September 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HgBarometer | Barometer ∞ Pressure Altitude |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/hgbarometer/id1234010346/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/barometer-pressure-altitude/id6740811403/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | **Free** | Ad-supported |
| Size | 8 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Matus](https://appshunter.io/developer/987936850) | [Fawkes Wei](https://appshunter.io/developer/432767536) |

## What reviewers say

### HgBarometer

[App page](https://appshunter.io/ios/app/hgbarometer/id1234010346)

This app assists users of mercury barometers by simplifying pressure calculations. It helps determine barometric pressure by accounting for meniscus height, instrument temperature, and local gravity. It also offers unit conversions and can be used to calibrate barometers.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### Barometer ∞ Pressure Altitude

[App page](https://appshunter.io/ios/app/barometer-pressure-altitude/id6740811403)

Access your device's built-in barometer for real-time atmospheric pressure and altitude readings. Offers multiple units and works offline without requiring signup or subscriptions.

**Highlights:** Live barometric pressure readings, Current altitude display, Multiple pressure units (atm, hPa, kPa, Bar), Offline functionality, Native iOS design, Minimalist interface

**In-app purchases:** none


## Frequently asked questions

### Is HgBarometer free?

HgBarometer is free to download, with no in-app purchases.

### Is Barometer ∞ Pressure Altitude free?

Barometer ∞ Pressure Altitude is free to download, with no in-app purchases.

### Which has better reviews, HgBarometer or Barometer ∞ Pressure Altitude?

Barometer ∞ Pressure Altitude is rated higher. HgBarometer averages 4.0 out of 5 from 1 ratings, while Barometer ∞ Pressure Altitude averages 5.0 from 1 ratings.

### Do HgBarometer or Barometer ∞ Pressure Altitude have ads?

Barometer ∞ Pressure Altitude shows ads; HgBarometer does not.

### Which is updated more often, HgBarometer or Barometer ∞ Pressure Altitude?

HgBarometer ships an update every 4 months, and Barometer ∞ Pressure Altitude every 10 months. Most recently, HgBarometer was updated on September 17, 2026 and Barometer ∞ Pressure Altitude on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*