Mattermost - Mattermost is an open source alternative to Slack.
Nomad List - Find the best place to ❤️ live, 👩💻 work, and 💃 play
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Claire - A new intuitive way to compare and book flights
Slack - A messaging app for teams who see through the Earth!
Bradley - Personal travel assistant