Have I Been Sold? - Check if your email address was sold without permission
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
Optery - See the private info data brokers post about you online
ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.
Creep Alert - Check if friends or colleagues track you via email
Seald - Keep your conversations secure, everywhere.