Flock is a simple, free messaging app built specially for teams and small businesses.

Features

• Simple setup, no IT-admin required
• Fast 1-to-1 chat with read and delivery receipts
• Awesome group chat with inline image previews
• Share stickers to make conversations more fun
• Invite clients and chat with them to get instant approvals
• Mute app notifications through DND mode when you do not want to be disturbed
• Chat across your devices mobile, desktop and Web
• Access unlimited chat history across all your devices
• Clean and gorgeous UI