AWS RDS for PostgreSQL is a service that allows you to run a PostgreSQL database on the cloud with Amazon Web Services. It is a managed service that handles tasks such as installation, upgrades, backups, replication, and scaling of your PostgreSQL database. You can use AWS RDS for PostgreSQL with any application or tool that supports PostgreSQL. AWS RDS for PostgreSQL supports several versions of PostgreSQL, from 9.6 to 15, and offers features such as SSL/TLS encryption, Kerberos authentication, and Trusted Language Extensions.
The pricing of AWS RDS for PostgreSQL depends on several factors, such as the instance type, storage type, storage size, backup retention, Multi-AZ deployment, and region. You can pay for AWS RDS for PostgreSQL using On-Demand or Reserved Instances. On-Demand Instances let you pay by the hour with no long-term commitments, while Reserved Instances offer significant discounts for one or three year terms.