PlanetScale - The last database you'll ever need. Go from idea to IPO.
fangr.am - Building communities for creators
MemberPrism - open source alternative to memberstack / memberspace , but with both front and backend member-only content protection - easychen/MemberPrism2
FansMine - Subscription social platform for creators & their fans
Petti - Effortless database backups
Patreon - Patreon enables fans to give ongoing support to their favorite creators.