Polargram - Print your Instagram and Facebook photos with ease
AffiliateWP - A powerful affiliate marketing solution for WordPress.
Repostage - Print your Instagram photos with a hashtag
ReferralMagic - Turn your users and customers into referral magnets.
Lura - Lura replaces receipt printers with a mobile device that displays a QR Code when printed to, so retailers can issue digital receipts without collecting any personal information.
Echo - Golang HTTP server framework