The two options to distribute data to millions of users around
the world are
- Azure Cosmos DB
 
- Amazon DynamoDB
 
Azure Cosmos
DB
- Azure Cosmos DB is a database service that is distributed
globally.
 
- Developed by Microsoft
 
- Azure Cosmos DB allows you to manage your data even if you keep
them in data centers that are scattered throughout the world.
 
- It uses five different consistency levels.
 
- Very low latency is guaranteed in Azure Cosmos DB that is less
than 10 milliseconds for reading data and less than 15 milliseconds
for writing data.
 
- Pricing of Azure Cosmos DB is based on the storage used and
data throughput.
 
Amazon
DynamoDB
- Amazon DynamoDB is a fully managed NoSQL database service that
allows the creating of database tables that can store and retrieve
any amount of data.
 
- Developed by Amazon.
 
- Amazon DynamoDB is a database that delivers very high
performance at any scale.
 
- Many of the world's fastest-growing businesses depend on the
scale and performance of DynamoDB.
 
- Benefits of Amazon DynamoDB are
 
- Managed service
 
- Scalable
 
- Fast
 
- Durable and highly available
 
- Cost-effective
 
So Amazon DynamoDB is better in terms of
services and scalability