Foldable Flexibility:  Certain apps can adapt their interface based on the fold position.

Drag-and-Drop Delights:  Imagine dragging and dropping content between apps displayed side-by-side

Foldable Flexibility:  Certain apps can adapt their interface based on the fold position.

Foldable Fun:  Mobile games can be designed specifically for the foldable

Folding Fitness:  Fitness apps could utilize the foldable form factor for workout

Folding for Foldables:  New app categories might emerge specifically designed for the unique capabilities of foldable phones. – 

Map Mastery:  Foldable map apps could display a detailed map on one half and turn-by-turn directions or points of interest on the other.

Evolved E-books:  E-reading apps can take advantage of the foldable form factor to display two pages side-by-side, mimicking the feel of a physical book.