Oracle Application Express 19c (19.1.0.00.15) with Oracle REST Data Services (19.1.0.092.1545), Tomcat and Nginx setup to co-operate with your existing Amazon RDS for Oracle (https://aws.amazon.com/rds/oracle/)

Oracle Application Express (APEX) 19c is a low-code development platform that enables you to build stunning, scalable, secure apps, with world-class features. Use Oracle APEX makes to build beautiful apps, mobile and desktop, that are responsive, accessible, and can be effortlessly customized to fit your company's brand and personality.

Amazon RDS for Oracle allows you to run Oracle DB (Standard or Enterprise Edition) in the AWS Cloud both in BYOL and License Included model. See more at https://aws.amazon.com/rds/oracle/

Software charge is for setup and configuration and usage of configuration scripts. Oracle Software included in this AMI is free but you are bound to licenses as described below:

• Oracle Instant Client 19.3 (Basic, SQL*Plus, Tools) is free but you are bound to license available at https://www.oracle.com/technetwork/licenses/distribution-license-152002.html
• Oracle Application Express (APEX) 19c is free but you are bound to license available at https://www.oracle.com/technetwork/licenses/app-express-lic-152009.html
• Oracle REST Data Services 19.1 is free but you are bound to license available at http://www.oracle.com/technetwork/licenses/sqldev-license-152021.html