Use Cases and Deployment Scope
At first, Oracle Application Express was used by only one department. However, after realizing the benefit, gradually it has been adopted by the whole organization. Majority of the use case is for Internal Application, with user mostly from employee. Example of Internal Application such as small-scale ERP, workflow framework, tracking assets and licenses, issue tracking system, and also can be used to analyze and monitor various data, such as activity log and sales dashboard. To use Oracle APEX for commercial application is not recommended, unless you have very good Oracle DBA.
Other Software Used
Qlik Sense, Microsoft Visual Studio Code, UiPath Automation Platform, Microsoft Teams, Snowflake, OneNote, DBeaver