Tox - Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Hunter - Find all the email addresses related to a domain
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Snov.io - More leads. More sales. More revenue.
uTox - µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs...
Apollo.io - Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.