Astra by Cesbo - Talk to Alexa anywhere, from your iPhone
Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
Reverb - Use Alexa on your Mac, iPhone and Android
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
Amazon Blueprints - Create your own Alexa Skill in minutes
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.