TortoiseSVN - The coolest interface to (Sub)version control
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Xversion - Super easy enterprise class version control.
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
RapidSVN - CollabNet, Facilitating Collaborative Software Development
AnyPresence - AnyPresence is an Enterprise Backend as a Service for mobile app development and API augmentation.