New features in iOS 26 allow you to tap Share on an audio file and select a new Use as Ringtone option directly, bypassing the need for third-party apps like GarageBand. On Android

While traditional text messages (SMS) are limited to 160 characters of plain text, modern smartphones use or Rich Communication Services (RCS) to send audio files that can be used as ringtones. How to Send a Ringtone via Text

Tap the received audio file and select Save to Files . Set as Tone: Go to Settings > Sounds & Haptics > Ringtone .

Open your messaging app (like Google Messages or Apple Messages), tap the plus (+) or attachment icon , and select the audio file.

Most carriers limit MMS attachments to around 1MB . If the file is too large, it may be automatically compressed, which can lower the audio quality. Setting the Received File as a Ringtone

Find the audio file (usually in MP3 or M4A format) in your phone's Files or Music app.