A common question from admins is "What's the difference between Software Center and Application Catalog, and when should I use each one?" The short answer to this question is if you plan to target software to users, you will use the Application Catalog. If you plan to target software to devices (computers, mobile devices, and so on), you will use Software Center.
To determine whether an application should (or will) appear in Software Center or Application Catalog, ask the following questions:
Do I need to target users or user groups for software delivery?
Do I need to target systems for software delivery?
Will Operating System Deployment Task Sequences be available for the user to start the installation?
Will you allow optional software updates installation, and/or software updates with a deadline, but allow the user to install in advance?
Do you use Task Sequences for Non-Operating System Deployment software installations?
Use the...