20+ of the Best Chat Apps to Use When Talking to Complete Strangers The greatest chat for those aged 20 and above to flirt or to make new friends. Apps to Communicate. To Strangers. MeetMe. MeetMe has the potential to be an incredible chat app. Badoo. The popularity of the working platform has been growing steadily since since Badoo was first introduced in 2006. Skout. Moco. Whisper. Azar. Holla.