Question: how to set ringtone in iphone with app?
Answer: Use scroller and handles to select the part of the song to set it as a ringtone. [02:13]
Scroll down to 'File Sharing' section and select 'Ringtones' app from the list. [03:22]
Go to 'File' in the main menu bar and click on 'Add File to Library...' [04:07]