BookMooch - BookMooch is a community for exchanging used books.
Germany Chat - Germany Chat app enables users to make new friends so they can spend their extra time while chatting with them.
BookCrossing.com - It's the World's Library. It's a smart social networking site.
Meet And Chill - Meet And Chill app provides features through which users can meet with strangers with the same interests to make new friends.
Random PenPals - Get a quarantine PenPal in 10 seconds
TriPriend - TriPriend app comes up with features to help you in making new national and international friends by searching for friends on the basis of interests and hobbies.