DynamoDB On Demand Capacity

Charges apply for: Reading, Writing, and Storing data
With on-demand, you don't need to specify your requirements
DynamoDB instantly scales up and down based on the activity of your application
Great for unpredictable workloads
You want to pay for only what oyu use (pay per request)
- great for serverless stacks

Which Pricing Model Should I Use?

On-Demand Capacity	Provisioned Capacity
Unknown Workloads	You can forecast read and write capacity requirements
Unpredictable application traffic	Predictable application traffic
You want a pay-per-use model	Application traffic is consistent or increases gradually
Spiky, Short lived peaks