What kind of database solution suits my mobile apps

I am looking into options how to realize the following use case. A iOS/Android user is using my app which gets its table view data populated by a cloud database solution. The user must be able to send back information (e.g. name + date) which needs to be send back to the database and gets stored there in a/different table/s. Moreover, I would need the db-solution to run automated reports based on the information sent back by the users (e.g. in an excel file).

So far I only found ragic.com might suit my needs. But what other options are out there, which might not be as fancy looking but will get the job done.

A WebService is considered best practice regarding these matters. Have a look at this guys tutorial:

http://android.programmerguru.com/android-webservice-example/