Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
GoZen.io - GoZen Growth is a user-friendly email marketing software with outcome-driven and industry-specific email templates. Get started and grow your business now.
Olvid - The most secure messaging app in the world.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
WireMin - WireMin is a private messaging tool for your most personal communications.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.