PackMojo - Create custom packaging in 3D and order in low volume
Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Pakible - Custom packaging, made simple. 10 boxes for $10
Ripcord - A desktop chat client for Discord and Slack
Die Cut Templates - Generate custom professional packaging templates in seconds.
Ziggs - Smoothly Share Content Between Devices!