# Altitude Compass vs AlarmTune

The clearest difference is update cadence: Altitude Compass at every 5 days against AlarmTune's every 3 weeks. Altitude Compass also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Altitude Compass sells 2 one-off in-app purchases and AlarmTune sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Altitude Compass ships an update every 5 days, AlarmTune every 3 weeks. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Altitude Compass | AlarmTune |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (17 ratings)](https://appshunter.io/ios/app/altitude-compass/id1642364007/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 95.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 42 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [锦滔 欧](https://appshunter.io/developer/1524196172) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Altitude Compass

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

This app provides real-time altitude, pressure, and location data for outdoor activities. It offers customizable compass dials and display themes, with an optional full version for enhanced photo watermarking and personalization.

**Highlights:** Real-time altitude and pressure readings, GPS coordinates and nearby addresses, Customizable compass dials and themes, Home Screen, Lock Screen, and StandBy widgets, Watermark camera for photos, Photo information preservation, Customizable watermark content

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (2)**

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


### AlarmTune

[App page](https://appshunter.io/ios/app/alarmtune/id6762519501)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AlarmTune Premium Monthly | $2.99 | per month |
| AlarmTune Premium Annual | $14.99 | per year |


## Frequently asked questions

### Is Altitude Compass free?

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

### Is AlarmTune free?

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

### Do Altitude Compass or AlarmTune have ads?

Neither Altitude Compass nor AlarmTune shows ads.

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

Altitude Compass ships an update every 5 days, and AlarmTune every 3 weeks. Most recently, Altitude Compass was updated on November 7, 2026 and AlarmTune on November 9, 2026.

---

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