HelpStack - Open Source mobile help framework to support iOS and Android app users.
Kajabi - Kajabi is the only Knowledge Commerce platform today with everything you need to market, sell, and deliver your knowledge online.
Chat Center - Chat with one click, no matter what messaging app you use
Tendenci - Tendenci - The Open Source AMS is a cloud-based all-in-one management SaaS solution for Non-profits and Associations.
Helpshift - Helpshift is an in-game customer support platform that enables mobile apps to improve customer experience, drive higher ratings and increase retention.
YourMembership - YourMembership provides membership management software integrated with social networking features.