PlanetRomeo is an Amsterdam-based website dedicated to gay men that helps them look for authentic relationships, friends, dates, flings and a lot more. great service, whole range of functionalities for free, the same is true for the app!
You can either browse more guys than at the other websites, or you can actually search in depth, again same is true for the app.

Stand-out features include the ability to see who has been looking at your profile and to save contacts and group them together with tags.