The Scriber Android SDK provides developers access to the Scriber API functionality through Java. Some example SDK methods include retrieving sales and sale information, managing events and referrals, and retrieving users. Scriber is a platform for in-app sales, referrals, and analytics.
On the Amazon cloud you could create many options for running databases in the cloud. A brief look at "Running databases on AWS" suggests comprehensive cloud as a database service resourcesoffered by Amazon. While Amazon RDS offers you the choice of MySQL, Oracle or SQL Server, Amazon DynamoDB offers you NoSQL storage while Amazon SimpleDB offers schemaless database.