# Galvanic Sailing vs CH16

The clearest difference is in-app purchases: Galvanic Sailing at none against CH16's 2. Galvanic Sailing also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 months). CH16's advantage is iOS requirement (13.0 vs 15.5). On price and device support there is nothing between them.

Both are free to download. CH16 sells 2 in-app purchases, starting at $0.99 per month. Galvanic Sailing asks for nothing beyond the download.

Galvanic Sailing ships an update every 6 days, CH16 every 2 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | Galvanic Sailing | CH16 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 155 MB | 80 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Galvanic Works S.L.](https://appshunter.io/developer/1874253171) | [Global SAR Hub](https://appshunter.io/developer/1888797457) |

## What reviewers say

### Galvanic Sailing

[App page](https://appshunter.io/ios/app/galvanic-sailing/id6758662475)

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

**In-app purchases:** none


### CH16

[App page](https://appshunter.io/ios/app/ch16/id6761360179)

This maritime safety app provides instant access to global rescue coordination centers and features tools for generating distress messages and planning voyages. It offers real-time location tracking for man overboard situations and works offline, ensuring safety at sea.

**Highlights:** Global maritime rescue center directory, Interactive SRR zone map, GMDSS-compliant distress message generator, Man Overboard (MOB) mode with GPS tracking, Passage Plan for voyage declaration, Offline functionality, Multilingual support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CH16 Pro | $0.99 | per month |
| CH16 Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Galvanic Sailing free?

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

### Is CH16 free?

CH16 is free to download, with in-app purchases available.

### Do Galvanic Sailing or CH16 have ads?

CH16 shows ads; Galvanic Sailing does not.

### Which is updated more often, Galvanic Sailing or CH16?

Galvanic Sailing ships an update every 6 days, and CH16 every 2 months. Most recently, Galvanic Sailing was updated on November 5, 2026 and CH16 on November 5, 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.*