# RabattHUD vs Altitude Compass

The clearest difference is in-app purchases: RabattHUD at none against Altitude Compass's 2. RabattHUD also leads on iOS requirement (13.2 vs 15.0). Altitude Compass's advantage is update cadence (every 5 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Altitude Compass sells 2 one-off in-app purchases. RabattHUD asks for nothing beyond the download.

RabattHUD ships an update every 2 months, Altitude Compass every 5 days. The most recent releases landed on June 10, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | RabattHUD | Altitude Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (16 ratings)](https://appshunter.io/ios/app/altitude-compass/id1642364007/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 95.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | — | Paid |
| Size | 1 MB | 3 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marc Martin](https://appshunter.io/developer/1493396948) | [锦滔 欧](https://appshunter.io/developer/1524196172) |

## What reviewers say

### RabattHUD

[App page](https://appshunter.io/ios/app/rabatthud/id1493396949)

**Features:** macOS Compatibility

**In-app purchases:** none


### Altitude Compass

[App page](https://appshunter.io/ios/app/altitude-compass/id1642364007)

This tool provides real-time altitude, atmospheric pressure, and location data. It includes a camera with environmental watermarks, a level gauge, speedometer, and sunrise/sunset calculations. Customize the interface and view data via widgets.

**Highlights:** Switchable altitude data sources (GPS/altimeter), Real-time camera with environmental data watermarks, Level gauge, speedometer, sunrise/sunset calculator, Customizable UI with dark/light modes, Widget support for home and lock screens, Ad-free and privacy-focused design

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day Trial | Free | one-time |
| Full Version Unlock | $0.99 | one-time |


## Frequently asked questions

### Is RabattHUD free?

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

### Is Altitude Compass free?

Altitude Compass is free to download, with in-app purchases available.

### Do RabattHUD or Altitude Compass have ads?

Neither RabattHUD nor Altitude Compass shows ads.

### Which is updated more often, RabattHUD or Altitude Compass?

RabattHUD ships an update every 2 months, and Altitude Compass every 5 days. Most recently, RabattHUD was updated on June 10, 2026 and Altitude Compass on September 23, 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.*