# GESTIS vs IGS

The clearest difference is review sentiment: GESTIS at 100% against IGS's 0%. On price, update cadence, 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, IGS every 8 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | GESTIS | IGS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 7 MB | 246 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deutsche Gesetzliche Unfallversicherung e.V. (DGUV)](https://appshunter.io/developer/487126969) | [Kisters AG](https://appshunter.io/developer/952206147) |

## 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


### IGS

[App page](https://appshunter.io/ios/app/igs-public/id1485234040)

Provides comprehensive information on hazardous materials for the public and emergency responders. Access detailed data on chemical properties, safety measures, and emergency procedures.

**Highlights:** Hazardous material information, Public access, Emergency responder data, Safety measures, Emergency procedures

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GESTIS free?

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

### Is IGS free?

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

### Do GESTIS or IGS have ads?

Neither GESTIS nor IGS shows ads.

### Which is updated more often, GESTIS or IGS?

GESTIS ships an update every 7 months, and IGS every 8 months. Most recently, GESTIS was updated on September 10, 2026 and IGS on September 9, 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.*