# Barometer ∞ Pressure Altitude vs QR Dess Code

The clearest difference is ads: QR Dess Code at none against Barometer ∞ Pressure Altitude's shown. QR Dess Code also leads on update cadence (fortnightly vs every 10 months) and device support (3 vs 1). On price 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 ships an update every 10 months, QR Dess Code fortnightly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Barometer ∞ Pressure Altitude | QR Dess Code |
| --- | --- | --- |
| 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 | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 80 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fawkes Wei](https://appshunter.io/developer/432767536) | [Antoine DESSERE](https://appshunter.io/developer/1870534821) |

## 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


### QR Dess Code

[App page](https://appshunter.io/ios/app/qr-dess-code/id6758045077)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Barometer ∞ Pressure Altitude free?

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

### Is QR Dess Code free?

QR Dess Code is free to download, with no in-app purchases.

### Do Barometer ∞ Pressure Altitude or QR Dess Code have ads?

Barometer ∞ Pressure Altitude shows ads; QR Dess Code does not.

### Which is updated more often, Barometer ∞ Pressure Altitude or QR Dess Code?

Barometer ∞ Pressure Altitude ships an update every 10 months, and QR Dess Code fortnightly. Most recently, Barometer ∞ Pressure Altitude was updated on November 8, 2026 and QR Dess Code on October 31, 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.*