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New Mobile Network Test App Launches
Starting April 20, 2026, consumers in Germany can use a new official app to test the quality of their mobile network service. The app, provided by the Federal Network Agency (Bundesnetzagentur), allows users to verify if their mobile internet speed falls significantly below the contractual agreement. If substantial differences are found, consumers have the legal right to demand a price reduction or even terminate their contracts early. This new tool aims to bring transparency to mobile network performance and enforce consumer rights regarding network quality [Source 1][Source 2].
How the App Works and Legal Implications
The app, called “Breitbandmessung Nachweisverfahren Mobilfunk,” is available for both Android and iOS devices and enables users to measure mobile network speeds in a structured way. For a case to be valid, measurements must be taken outdoors over five days, with six tests each day, totaling 30 measurements. A “considerable deviation” from the promised speed is defined by the law as the contracted maximum speed not being achieved on at least three out of five test days. Consumers can then present this evidence to their mobile network provider to request a refund proportional to the speed shortfall or to issue a termination notice with a notice period of 10 to 14 days to the provider [Source 2][Source 3][Source 4].
Implications for Expats and Foreign Residents in Germany
This development is particularly relevant for expats, international students, and foreign workers who rely heavily on mobile internet for communication, work, and study. Many expats may be unfamiliar with their rights under German telecommunications law. Using the app, they can independently verify network speeds and take informed action if service does not meet contract terms. It may also help users to avoid frustration stemming from network issues in rural or suburban areas where service quality can still be uneven despite nationwide investments. Expats should consider downloading the app early to monitor their connection, especially if they suspect poor network performance. If the app confirms that their experience consistently falls below the contract, they can either seek a price reduction or terminate their contract without penalty [Source 2][Source 4].
Next Steps for Mobile Customers
To use the app effectively, customers need to conduct the required minimum measurements outdoors over consecutive days. After collecting the data, the user can forward the results to the mobile network provider to request contractual remedies. Should disputes arise, consumers may need to seek legal assistance to enforce their rights, as suggested by consumer protection advocates. The Federal Network Agency encourages users to participate actively in this self-monitoring system to help improve overall mobile network transparency and quality across Germany. The app also contributes data to identify mobile “dead zones,” potentially aiding future network expansions [Source 4][Source 5][Source 6].
For more detailed information, users can read the original announcement on tagesschau.de: https://www.tagesschau.de/wirtschaft/verbraucher/app-rechtsanspruch-bei-schlechtem-handynetz-100.html [Source 2].
