WhosDown - App where you can genuinely make friends—connecting with someone that shares a common interest
GitHub Polls - Polls for GitHub issues and readme
Meetup for iOS and Android - Discover groups that are all about the things you love
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
MEETplnr - Organize meetups in your chat groups with ease
Twitter Polls - Polls embedded in tweets