# Barometer ∞ Pressure Altitude vs Barometer Assistant

The clearest difference is in-app purchases: Barometer ∞ Pressure Altitude at none against Barometer Assistant's 3. Barometer Assistant's advantage is ads (none vs shown) and update cadence (every 10 days vs every 15 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Barometer Assistant sells 3 in-app purchases, starting at $1.99 per 7 days. Barometer ∞ Pressure Altitude asks for nothing beyond the download.

Barometer ∞ Pressure Altitude ships an update every 15 months, Barometer Assistant every 10 days. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Barometer ∞ Pressure Altitude | Barometer Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/barometer-pressure-altitude/id6740811403/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 5 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fawkes Wei](https://appshunter.io/developer/432767536) | [三三 杨](https://appshunter.io/developer/1852457327) |

## What reviewers say

### 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


### Barometer Assistant

[App page](https://appshunter.io/ios/app/barometer-assistant/id6757361770)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $5.99 | per month |
| Annual Subscription | $39.99 | per year |


## Frequently asked questions

### Is Barometer ∞ Pressure Altitude free?

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

### Is Barometer Assistant free?

Barometer Assistant is free to download, with in-app purchases available.

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

Barometer ∞ Pressure Altitude shows ads; Barometer Assistant does not.

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

Barometer ∞ Pressure Altitude ships an update every 15 months, and Barometer Assistant every 10 days. Most recently, Barometer ∞ Pressure Altitude was updated on September 9, 2026 and Barometer Assistant on September 12, 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.*