The best alternatives to Karma App are Key Values, Talendy, and Feedny. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Karma App?
General Collaboration— One inbox for all your work discussions
Feedny is a social networking app that allows people with matching interests to connect, get instant help and feedback from each other. There an option to use a geolocation filter - so that meeting & connecting in-person with like-minded people becomes easier
Cliques is the best app for everyone to find other people based on their interests. Whether you're looking alone, with a friend, or with a partner, Cliques is the app for you.