How do you set a custom ringtone on iPhone in 2025? It’s still one of the most confusing things Apple refuses to simplify. If you’ve ever tried to change your ringtone to a custom sound or MP3 on iOS, you’ve probably ended up lost in a mess of settings, apps, and file formats. This step-by-step guide is the cleanest way to actually do it — no fluff, no outdated advice. We break it down using GarageBand, Apple’s own app, and walk you through exactly how to take a custom ringtone (like something d