Breitbandmessung

Breitbandmessung measures your mobile data speeds and identifies cellular coverage gaps directly from your device. Created by zafaco GmbH for the German Federal Network Agency, this app gives you precise insights into your local network performance at no cost and with no ads.

Measure your data transmission rates instantly on any mobile network, regardless of your provider or technology. Each measurement is recorded with location and time data, letting you track how your connection varies across different areas. Results stay on your device unless you choose to contribute them to the broader network mapping effort.

Capture cellular dead zones and network availability across all technologies—from 2G through 5G. The app visualizes coverage gaps on an interactive map, showing exactly where your signal drops or switches between network types. When you share your findings, they combine with millions of other measurements to create an aggregated picture of Germany's mobile infrastructure.

Your data remains under your control. Breitbandmessung operates independently of any carrier, giving you unbiased speed and coverage information. Whether you're troubleshooting a weak signal at home, testing performance while traveling, or contributing to national coverage research, the app delivers fast, reliable measurements without subscription fees or tracking.

Download Breitbandmessung today to map your connectivity and help improve mobile networks across Germany.