WHAT IS AMAZON RDS?

Amazon RDS:

Amazon Relational Database Service (Amazon RDS) is a fully managed cloud service provided by Amazon Web Services that helps you create, operate, and manage relational databases in the cloud.

Instead of manually installing and maintaining a database on an EC2 instance, RDS handles:

What is AMAZON AURORA?

Amazon Aurora:

Amazon Aurora is a high-performance relational database engine available inside Amazon RDS.

Aurora is part of RDS but is specially designed for:

How Aurora and RDS Work Together