Heroku Redis - Reliable and powerful Redis as a service.
Redis Cloud - Redis Cloud is a fully-managed cloud service for hosting and running Redis datasets.
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.