Specialized applications
3 of the 139 applications in the catalogue. They are counted separately from the core catalogue and always have been.
All three are being built, and none can be bought or tried.
The distinction
Not difficulty, and not price. It is whether the application assumes something about your business that most businesses do not have.
A core application asks nothing about what you sell. A specialized one is built around a particular kind of operation.
Some connect to live external accounts — real customer contacts, real advertising spend — which changes what a mistake costs.
Where an application touches live accounts, it is arranged rather than switched on alone. That is a safety decision, not a sales one.