App trademarks, answered

Which trademark class does an app fall under?

Class 9 covers downloadable software, which is where nearly every mobile app sits. If your app is a hosted service with a mobile front end, Class 42 (software as a service) usually applies as well. Games often add Class 41, fintech Class 36, and health apps Class 44 — but check Class 9 regardless of what else fits.

Can the App Store remove my app over a trademark?

Yes. Both Apple and Google operate intellectual-property complaint processes, and a valid complaint can get a live, earning listing taken down. Neither store screens your name for trademarks when you submit, so passing review is not evidence that the name is clear.

My app name is free on the App Store — does that mean it is clear?

No. Store availability and trademark rights are unrelated. Apple only checks whether another listing already uses the name; it does not check any register. A name can be free on both stores and still infringe a registered mark in Class 9.

Do I need to register a trademark before launching?

Not to submit — no store asks for one. Registration protects you later, and in the US you can file an intent-to-use application before you ship. The screening on this page is about the opposite risk: making sure you are not walking into someone else's mark.

Is this legal advice?

No. This is a screen that points you at the right registers and the right classes. It searches US and UK databases, so it is geographically limited, and it cannot judge confusing similarity the way an examiner or an attorney would. For anything commercially serious, get a full clearance search.

Next: check the name across both stores, or read is my app name taken.