Heroku Redis - Reliable and powerful Redis as a service.
Mongoku - A neat Web-based GUI for MongoDB
Redis Cloud - Redis Cloud is a fully-managed cloud service for hosting and running Redis datasets.
MongoDB Startup Accelerator - Get $3,000 in free Atlas credit to run MongoDB in the cloud.
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
MongoLab - MongoLab is a fully managed MongoDB Database-as-a-Service platform that automates the operational aspects of running MongoDB in the cloud.