cSync: Sync Google Contacts,..
Contacts Sync Backup Cleanup
Free · In‑App Purchases · Designed for iPad
cSync is an intelligent contact management app designed for iOS, perfectly solving pain points like inconvenient search, difficult backups, and duplicate cleanup.
**cSync - Making Contact Management Easier**
Have you ever encountered these problems?
- 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
cSync is built to solve these problems!
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**Powerful Search Features**
- **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
**Search Examples:**
- 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
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**Comprehensive Backup Features**
- **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 Scenarios:**
- 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
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**Smart Cleanup Features**
- **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
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**Data Statistics & Analytics**
- **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
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**Other Featured Functions**
- **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
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**Privacy Commitment**
- 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
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Privacy Policy: https://csync.vercel.app/privacy-policy.html
Terms of Use: https://csync.vercel.app/terms-of-use.html
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**Download cSync and make contact management easier!**
Ratings & Reviews
The developer, 丹丹 李, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 丹丹 李
- Size
- 2.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Yearly Premium $69.99
- Weekly Premium $6.99
- Copyright
- © Dandan Li