The company blog of Orchestrate, a database-as-a-service startup, covering NoSQL, APIs, and its acquisition by CenturyLink.
HN commenters mention it as a hosted backend service, and its staff reply there to say data can be exported with no lock-in.
Hey Ryan, thanks for the comment. So, Orchestrate actually has an on-demand export tool so there is no lock-in. We backup your data into S3 and send you all your data in JSON format. We take zero lock-in very seriously :) http://orchestrate.io/blog/2014/03/12/new-feature-data-export-for-zero-lock-in/
You can easily create a backend free of cost on https://orchestrate.io/
https://parse.com/
http://apifox.com/