Patreon - Patreon enables fans to give ongoing support to their favorite creators.
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Liberapay - Liberapay is a recurrent donations platform.
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Ko-fi - Ko-fi offers a friendly way for content creators to get paid for their work.
AnyPresence - AnyPresence is an Enterprise Backend as a Service for mobile app development and API augmentation.