# Meridian Nav vs Compass Observation App

The clearest difference is price: Compass Observation App at Free against Meridian Nav's $0.99. Meridian Nav's advantage is iOS requirement (13.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Compass Observation App is free to download; Meridian Nav costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Meridian Nav ships an update every 6 days, Compass Observation App every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Meridian Nav | Compass Observation App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Paid | — |
| Size | 36 MB | 36 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SEUNGHYEOK CHOI](https://appshunter.io/developer/6774504788) | [Burak Yesilirmak](https://appshunter.io/developer/6817890583) |

## What reviewers say

### Meridian Nav

[App page](https://appshunter.io/ios/app/meridian-nav/id6774504786)

This app provides comprehensive offline marine navigation tools for sailors. It offers GPS tracking, offline chart display, route management, and various celestial and navigational calculations. All features are accessible without an internet connection.

**Highlights:** Offline GPS position monitoring, Offline chart and waypoint display, .rtz route import and management, Navigation calculations, Celestial body data, Sun/moon event times

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

**In-app purchases:** none


### Compass Observation App

[App page](https://appshunter.io/ios/app/compass-observation-app/id6817890581)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Meridian Nav free?

Meridian Nav costs $0.99, with no in-app purchases.

### Is Compass Observation App free?

Compass Observation App is free to download, with no in-app purchases.

### Do Meridian Nav or Compass Observation App have ads?

Neither Meridian Nav nor Compass Observation App shows ads.

### Which is updated more often, Meridian Nav or Compass Observation App?

Meridian Nav ships an update every 6 days, and Compass Observation App every 3 days. Most recently, Meridian Nav was updated on October 28, 2026 and Compass Observation App on October 24, 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.*