WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
pplQ - A daily nudge to keep in touch with someone important to you
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Anyfi - WiFi mesh network of smartphones
Zulip - Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.
GetFlow.Space - Meditation, Ambient, ASMR, Hypnosis scripts for boost productivity, stress reduction and sleep