Fellow is an innovative mobile application developed by synthCell for users of the fellow.pl website, the largest dating site for gay men in Poland. The app offers a fully synchronized experience with the website and provides access to all the features available on the website. Fellow is available for Android and is free to download and use.

The app's main feature is the Radar, which uses the device's GPS coordinates to display nearby users. The app requires permission to access the device's location data to use the Radar feature and automatically updates the user's location in their profile. The app also allows users to disable the location-sharing feature in the app's settings. Fellow is a great way for gay men in Poland to connect with other gay men in their area and find potential matches.