Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.

Textmagic - The all-in-one solution for all your business texting needs - marketing campaigns, two-way SMS chats, reminders, notifications, and internal staff communication.

Olvid - The most secure messaging app in the world.

Norby.live - The easiest way to collect signups and send SMS campaigns

WireMin - WireMin is a private messaging tool for your most personal communications.

Textedly - Textedly is an SMS marketing communications channel that allows to advertise, promote, announce, and engage with audience through text messaging directly to cell phones.