Beyond ordinary team chat, there are end-to-end encrypted messengers, cross-device sync and self-hosted options. Worth thinking about who holds your data before choosing.
A private messaging app for Windows, macOS and Linux. Messages are end-to-end encrypted and the server only relays them without storing content, with text, voice and video calls and group chats, and sign-up needs only a phone number. It suits people who care about communication privacy and would rather not hand chats to a platform.
An open-source remote desktop application designed for self-hosting, often used as a TeamViewer alternative. Relay and signal servers can be deployed on your own infrastructure, with remote control, file transfer, clipboard sync and multi-monitor support across Windows, macOS, Linux, Android and iOS. It suits teams that care where traffic goes and want to own the connection path.