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Google Contacts Sync一款简单的联系人备份/恢复工具，支持联系人群组备份和还原，支持合并和替换两种模式
Google Contacts Sync is the most easy tool for backup and restore address book between iOS device and Gmail account.
Application integrated with Google Contacts Service, the perfect solution for privacy and security problems.
Features:
1. Backup iOS Contacts & Groups to Gmail
2. Restore iOS Contacts & Groups from Gmail
5. Support Merge and Replace modes
