Perfect Ringtone Maker
Create ringtones from songs in your iPhone's Music library
1 Open the App, Choose a song from your iPhone's Music library.
2 Select the start time and duration of the ringtone(up to 40 seconds).
3 You can listen to the ringtones which you have made.
4 You can send the ringtones which you have made to you computer via FTP,or send to your friends via email,You can also find the ringtones via ‘iTunes File Sharing’.
5 You can sync with iTunes to get the ringtones into the Settings section of your iPhone.