MOV video can be played by Quick Time player, but if you want to enjoy mov videos with your mobile phone, then you need to convert mov to 3gp which is the right format for cell phone. So you need this software, Wondershare Video Converter for Mac, which is a professional converter to convert among all popular formats on mac os x.
Free download Wondershare Video Converter for Mac, Intel and PowerPC supported.
Launch the MOV to 3GP Converter for Mac and you can see its friendly interface:
1. Click 
button to import mov video files you intend to convert. All these loaded videos will be shown in the playlist. A preview screen is designed for you to watch these loaded videos.
2. You can see "Trim" "Crop" "Effect" buttons on the main menu. Clicking these buttons, you can split video into small clips, alter the dimension of the video, and adjust video brightness, contrast, saturation.
3. Then set output format and folder. Click the down-arrow to choose 3GP format. Click "Browse" button to select output folder to save the converted videos. "Open" is to go to the defaulted folder.
4. After all these settings, click 
button to convert mov to 3gp on mac os x.
As a Mac user, this powerful Wondershare Video Converter for Mac will your good helper and will lead you to a more colorful multimedia world.