Parse vs Couchbase

Parse offers unlimited API calls (max of 30req/sec), 1 million pushed and analytics for free.

When you want to upload a file, you just create an object and initialize the file upload to the server (this is done asynchronously).

User registration with Parse is pretty good and usually works without any problems. It's also very easy to use, you simply pass the username, password, email, etc. to the required method and register a callback that returns whether the registration was a success or a failure.

Same thing is done for login and logout as well.

Setting up a backend for an app with Parse is very easy and takes minutes. All you have to do is sign up and through their graphical interface follow all the steps, which boils down to creating tables and identifying the type of data that is being stored.

Then you download the library, integrate it with your app and initialize the process with one single line.

Parse has excellent documentation. Everything is thoroughly explained and all parts of the documentation are complete. It's actually very helpful for both beginners and advanced users alike.

Couchbase and Couchbase Mobile are open source and released under the Apache License.

Couchbase N1QL allows native SQL processing over JSON data with high performance indexing for low latency queries at scale.

The minimal code needed to pull data down to a device

With Couchbase you can make "Views" of data, which are practically predefined queries which are fetched with an O(1) algorithm.