Tap or "Custom Ringtone" and select the file from your Downloads folder. For iPhone (iOS) Users
Apple requires a slightly different process involving a computer or the GarageBand app: castor ringtone download
If you find a "Castor" track on YouTube that you love, many creators provide download links in the description. Alternatively, you can use verified conversion tools, though you should always ensure you have the right to use the audio for personal use. How to Download and Install Your Ringtone Tap or "Custom Ringtone" and select the file
Whether you want something ambient and soothing or upbeat and electronic, the "Castor" spectrum covers a wide variety of musical tastes. Top Sources for Castor Ringtone Downloads you can use verified conversion tools