Contacts Backup Pro 與 Gamyon 使用情況與統計

"Contact Backup Pro is the easiest way to backup and restore your contacts directly using your phone. With a single touch, you can backup all your contacts and send yourself a .vcf file attachment via email. You can easily restore all your contacts at any time by opening the .vcard file from your mailbox. MAIN FEATURES ○ One-click to backup your contacts!"