PlayPlay.io - Chess and Ping Pong tracking in Slack
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Pinpon - The ping pong bot for Slack
AWS Amplify - JavaScript library for app development using cloud services
Ranked.Fun - An online leaderboard with your friends for your favorite games (Ping Pong, Foosball, Smash Ultimate, Chess, etc.)
AWS Mobile Services - Storage, Analytics, Push Notif. & SMS Delivery SDKs