# GESTIS vs Seafarer's Compendium

The clearest difference is update cadence: Seafarer's Compendium at every 3 months against GESTIS's every 7 months. Seafarer's Compendium also leads on iOS requirement (9.3 vs 14.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GESTIS ships an update every 7 months, Seafarer's Compendium every 3 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | GESTIS | Seafarer's Compendium |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 7 MB | 138 MB |
| Requires iOS | 14.0 | **9.3** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deutsche Gesetzliche Unfallversicherung e.V. (DGUV)](https://appshunter.io/developer/487126969) | [ANOVA GmbH](https://appshunter.io/developer/1266213532) |

## What reviewers say

### GESTIS

[App page](https://appshunter.io/ios/app/gestis-ilv/id487126946)

This reference tool provides international limit values for chemical agents. A web application is now available, as a native mobile app will no longer be supported after January 6, 2025.

**Highlights:** International limit values for chemical agents, Web application access, Reference tool for chemical substances

**In-app purchases:** none


### Seafarer's Compendium

[App page](https://appshunter.io/ios/app/seafarers-compendium/id1266213533)

This professional guide helps maritime managers and crew identify and assess hazardous situations. It provides concise information and illustrations to prepare for various operations and includes a notepad for recording security-relevant events and accidents.

**Highlights:** Hazard assessment, Professional guidance, Concise information, Illustrations, Notepad function, Incident recording

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

**In-app purchases:** none


## Frequently asked questions

### Is GESTIS free?

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

### Is Seafarer's Compendium free?

Seafarer's Compendium is free to download, with no in-app purchases.

### Do GESTIS or Seafarer's Compendium have ads?

Neither GESTIS nor Seafarer's Compendium shows ads.

### Which is updated more often, GESTIS or Seafarer's Compendium?

GESTIS ships an update every 7 months, and Seafarer's Compendium every 3 months. Most recently, GESTIS was updated on October 14, 2026 and Seafarer's Compendium 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.*