Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
AWS Amplify - JavaScript library for app development using cloud services
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Online Compiler & Editor - Online Compiler & Editor is the highly efficient and fast-speed online compiler IDE that can run, execute, and compile the snippet on mobile and tablets by supporting more than forty-five programming languages.
Google Cloud Repositories - GitHub alternative by Google
Kumulos - Made for the business of mobile app development, Kumulos helps you manage the commercial and technical performance of Apps, so you drive a better outcome for your clients.