While there are a lot of sites that offer free ringtones, not all are legal. Even the sites that claim to be legally-operated do have some copyrighted music in their collections. That's why it's a good idea to make sure you download free ringtones from a legal site.
Another place to look for free ringtones is at iTunemachine. This site offers a huge database of ringtones, as well as games and other free apps. Although it's geared toward Apple devices, the site is compatible with Android, Symbian, and BlackBerry phones.
One of the best things about these sites is that you can preview the ringtones before downloading. This allows you to choose the one you like the best. Many of these sites also have an option to save a ringtone as an M4R or MP3 file. This means you can download and use the ringtone on your iPhone or iPod without having to worry about a monthly subscription.
Other free ringtones for iOS can be found on My Tiny Phone. This site has a library of more than half a million ringtones. It also allows users to save and send their custom ringtones in MP3 format as attachments. Additionally, it features a search feature to allow users to find ringtones by the date they were added to the site.