Netradar App on a Mobile Screen (image) Aalto University Caption The app can be downloaded free of charge. Users can view service areas and speeds of mobile networks on a map in real time and compare different providers. Credit Jukka Manner Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.