Amazon SimpleDB vs CloudBoost: What are the differences?

Amazon SimpleDB: Highly available and flexible non-relational data store. Developers simply store and query data items via web services requests and Amazon SimpleDB does the rest. Behind the scenes, Amazon SimpleDB creates and manages multiple geographically distributed replicas of your data automatically to enable high availability and data durability. Amazon SimpleDB provides a simple web services interface to create and store multiple data sets, query your data easily, and return the results. Your data is automatically indexed, making it easy to quickly find the information that you need. There is no need to pre-define a schema or change a schema if new data is added later. And scale-out is as simple as creating new domains, rather than building out new servers; CloudBoost: One complete database service that not only does data storage, but also search, real-time and more. CloudBoost.io is a database service for the “next web” - that not only does data-storage, but also search, real-time and a whole lot more which enables developers to build much richer apps with 50% less time saving them a ton of cost and helping them go to market much faster.

Amazon SimpleDB and CloudBoost can be primarily classified as "NoSQL Database as a Service" tools.

Some of the features offered by Amazon SimpleDB are:

• Amazon SimpleDB automatically manages infrastructure provisioning, hardware and software maintenance, replication and indexing of data items, and performance tuning.
• Amazon SimpleDB automatically creates multiple geographically distributed copies of each data item you store.
• You can also choose between consistent or eventually consistent read requests, gaining the flexibility to match read performance (latency and throughput) and consistency requirements to the demands of your application, or even disparate parts within your application.

On the other hand, CloudBoost provides the following key features:

• Data-storage
• real-time
• notification