Comment by jarfil

It's both.

Trademark law requires registering for a series of categories where a product seeks protection, with each category being relatively specific.

At the same time, suing someone for Trademark infringement requires a judge to decide whether it could "potentially induce confusion in the user".

Could an app be confused for a sausage? Could it be confused for a sneaker?... I'd say not, but I'm no judge!