Cord - One tap voice chat
Slack - A messaging app for teams who see through the Earth!
Walkie - Walkie is an online communication providing software that allows you to remain in touch with the other persons.
9mCollab - Collaborate (efficiently) Conclude (fast) Contribute (in the knowledge base)
Slack Voice Chat by Standuply - Easily record and send voice messages on Slack 🗣️
IntouchApp - Universal contacts manager for mobile.