# Current Altitude + Compass vs Marlink IriChat

The clearest difference is in-app purchases: Marlink IriChat at none against Current Altitude + Compass's 1. Marlink IriChat also leads on ads (none vs shown). Current Altitude + Compass's advantage is iOS requirement (11.0 vs 16.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Current Altitude + Compass sells 1 one-off in-app purchase. Marlink IriChat asks for nothing beyond the download.

Current Altitude + Compass ships an update every 2 months, Marlink IriChat every 3 months. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Current Altitude + Compass | Marlink IriChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/current-altitude-plus-compass/id6479185011/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 35 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [RedTracker LLC](https://appshunter.io/developer/1460840859) | [Marlink Events SAS](https://appshunter.io/developer/1860165330) |

## What reviewers say

### Current Altitude + Compass

[App page](https://appshunter.io/ios/app/current-altitude-plus-compass/id6479185011)

This utility app provides hikers and explorers with essential outdoor information. It offers real-time altitude, a digital compass, air quality, UV index, and a flashlight. Key locations can be saved offline for easy navigation.

**Highlights:** Real-time altitude readings, Digital compass navigation, Air quality index updates, UV index monitoring, Offline location saving, Built-in flashlight

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### Marlink IriChat

[App page](https://appshunter.io/ios/app/marlink-irichat/id6756337142)

**In-app purchases:** none


## Frequently asked questions

### Is Current Altitude + Compass free?

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

### Is Marlink IriChat free?

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

### Do Current Altitude + Compass or Marlink IriChat have ads?

Current Altitude + Compass shows ads; Marlink IriChat does not.

### Which is updated more often, Current Altitude + Compass or Marlink IriChat?

Current Altitude + Compass ships an update every 2 months, and Marlink IriChat every 3 months. Most recently, Current Altitude + Compass was updated on October 27, 2026 and Marlink IriChat on October 17, 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.*