get.evercontact.comSoftware by Kwaga
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
GumHub - Sell access to your GitHub repos with Gumroad
Pobuca Connect - Connect with your contacts.
Gumroad Memberships - Earn your audience's ongoing support
CRM-gx - Contact Management
Sup! Standup Bot - The complete stand-up and follow-up bot