cSync: Sync Google Contacts,..

iOS native contacts don't support partial phone number matching

Too many contacts, difficult to find people

Contact data cannot be easily backed up and migrated

Too many duplicate contacts need cleanup

Want to analyze contact data statistics

**Full-field search**: Search not only names, but also phones, emails, companies, positions, notes, addresses, and all other fields

**Pinyin search**: Quickly find contacts by entering pinyin initials or full pinyin

**Phone partial matching**: Match any consecutive digits in phone numbers - no need to remember the complete number

**Smart sorting**: Search results intelligently ranked by relevance, most relevant results first

**Highlight display**: Search results automatically highlight matched fields and text for easy viewing

Enter "138" to find all phone numbers containing these three consecutive digits

Enter "js" to find all contacts whose name pinyin initials are JS (e.g., John Smith)

Enter "apple" to find contacts with apple in their company name or email

**Multi-format support**: Export to vCard, CSV, and Excel formats

**One-tap backup**: Backup all contacts with one tap, ensuring data safety

**Backup management**: View all historical backups, restore to any version anytime

**Incremental backup**: Intelligently identify changes, only backup modified contacts

**iCloud sync**: Backups automatically uploaded to iCloud Drive, sync across devices

**Backup encryption**: Password protection support for data privacy security

**Quick sharing**: Share backup files via AirDrop, Email, Messages, and more

Backup contacts before getting a new phone, import on new device

Regular backups to prevent data loss

Export to Excel for editing and management on computer

Share with family and friends for batch contact import

**Duplicate detection**: Intelligent algorithms detect duplicate and similar contacts

**Multiple matching modes**:

Exact match: Same name and phone number

Smart match: Similar names, same pinyin, overlapping phone numbers

**Compare preview**: Side-by-side comparison of duplicate contacts, clearly see differences

**Smart merge**: Automatically merge duplicate contacts, retaining all non-empty fields

**Batch cleanup**: Clean all duplicate contacts with one tap

**Contact overview**: Total count, growth trends, distribution

**Field statistics**: Number of phones, emails, company info completeness

**Visual charts**: Pie charts, bar charts, line charts to display data

**Group analysis**: Analyze by initial letter, company, tags, and other dimensions

**Batch operations**: Batch delete, export, and edit

**Quick actions**: Tap phone to call directly, tap email to send mail

**Alphabetical index**: Side letter navigation for quick contact location

**Elegant interface**: Modern design, smooth animations, simple operation

**Privacy protection**: All data stored locally only, never uploaded to servers

All contact data is stored only on your local device

Never uploaded to any servers or third parties

iCloud backups are encrypted and protected by Apple

No personal information collected

Works completely offline, no network connection required