Nofanity - Nofanity removes swear words from YouTube videos
UserGuiding - User onboarding made easy, for less. Create product walkthroughs in a couple of clicks, without breaking the bank.
Eccco - Record a listen short audios, like Twitter but with voice.
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
SideComments.js - add Medium like comments to your site
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.