InterestExplorer - Discover 1000's of hidden Facebook interests to target.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
upRive - Create and scale Facebook ads quickly and efficiently
Keybase Chat - End-to-end encrypted chat built into Keybase
AdEspresso - Optimize your Facebook Ads Easily, Like Morning Coffee
Crypho - End-to-end-encrypted messaging and file sharing