For iPhone: Choose Your Ringtone: Before you set a free ringtone for calls, make sure you have the desired sound downloaded to your device. You can find free ringtones on reputable websites, apps, and platforms. Connect to iTunes: Connect your iPhone to your computer using a USB cable and open iTunes (or Finder, if you're using macOS Catalina or later). Adding to Library: In iTunes, drag and drop the downloaded ringtone file into your iTunes library. Sync Your iPhone: Sync your iPhone with iTunes to transfer the newly added ringtone to your device. Setting the Ringtone: On your iPhone, follow these steps: Go to Settings. Scroll down and tap Sounds & Haptics. Under the "Sounds and Vibration Patterns" section, tap Ringtone. You'll find a list of available ringtones. Scroll down to the "Ringtones" section, where your newly added free ringtone should be listed. Tap on it to set it as your default ringtone for calls.