Op3n is described as 'the multi dating app based on meeting between couples and singles sharing the same interests, lifestyle, desire and fantasy'. There are more than 25 games similar to Op3n for a variety of platforms, including Android, iPhone, Online / Web-based, iPad and Android Tablet. The best alternative is OkCupid, which is free. Other Op3n like games are Alovoa (Free, Open Source), Tinder (Freemium), Feeld (Freemium) and Meetwo (Free).
Meet new people in your area, absolutely privately using open-source technologies. You're only a few clicks away to find new friends, dating and sexual partners. Looking for a girlfriend, boyfriend, quick hookup, one-night stand or just someone with the same interests?
Chat, meet & date with Feeld. From curious couples to kinky singles, Feeld lets you explore your dating desires in a safe and private space designed for humans like you. Dating, Relationships & Hookups: 5 Reasons to try Feeld
Steper wants to rid its users of the famous (hi, how are you, what's your number ,fb , snap? ) with the help of locks and keys that users can define and fix themselves for each social element they want to share with an interesting user.