Vabotu - More than slack. More than Trello. FREE.
WhosDown - App where you can genuinely make friends—connecting with someone that shares a common interest
Tara AI - Define, plan & track mission-critical product updates, in one place.
Meetup for iOS and Android - Discover groups that are all about the things you love
Attentiv - Simple collaboration with upvotes, polls and anonymity
MEETplnr - Organize meetups in your chat groups with ease