# cSync: Sync Google Contacts,.. — Contacts Sync Backup Cleanup > Contact management, backup, and cleanup app with advanced search and analytics. (iPhone/iPad app by 丹丹 李.) - Source: https://appshunter.io/ios/app/csync-sync-google-contacts/id6757981126 (this page in markdown: same URL + `.md`) - Developer: [丹丹 李](https://appshunter.io/developer/1666474477) - Category: Productivity, Business - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 16.6 · 2 MB - Languages: American English - Released: 2026-01-23 - Data updated: 2026-08-20 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/csync-sync-google-contacts/id6757981126/reviews.md ## What is cSync? **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! --- **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 --- **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 --- **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 --- **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 --- **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 --- **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 --- Privacy Policy: https://csync.vercel.app/privacy-policy.html Terms of Use: https://csync.vercel.app/terms-of-use.html --- **Download cSync and make contact management easier!** ## Key features - Full-field and Pinyin search - Multi-format contact backup (vCard, CSV, Excel) - Duplicate contact detection and merging - Contact data statistics and visual charts - Batch operations for contacts - iCloud sync for backups ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Weekly Premium | $6.99 | per 7 days | | Yearly Premium | $69.99 | per year | ## Frequently asked questions about cSync ### Does cSync have ads? No, cSync does not contain advertisements. It is an ad-free application, allowing for an uninterrupted user experience. ### What are the subscription plans for cSync? cSync offers a Weekly Premium plan at $6.99 per 7 days with a 3-day free trial, and a Yearly Premium plan at $69.99 per year. ### How often is cSync updated? cSync was last updated on January 23, 2026, with version 1.0. Further update frequency is not specified but the initial release indicates ongoing development. ### What devices does cSync support? cSync is available for iPhone and iPad devices, ensuring compatibility for Apple users. ### Can I export my contacts from cSync? Yes, cSync supports exporting contacts in multiple formats including vCard, CSV, and Excel, facilitating easy data migration and management. ### How does cSync handle duplicate contacts? cSync uses intelligent algorithms to detect duplicate and similar contacts, offering side-by-side comparison and smart merging to retain all non-empty fields. ### What kind of search features does cSync offer? cSync provides powerful search capabilities including full-field search across all contact details, Pinyin search, and phone number partial matching for quick contact retrieval. ### Is my contact data secure with cSync backups? Yes, cSync supports backup encryption with password protection for enhanced data privacy and security. Backups are also automatically uploaded to iCloud Drive. ## Version history (last 1 release) ### 1.0 — 2026-01-23 No release notes. ## More apps by 丹丹 李 - [Authenticator™ Full Protection](https://appshunter.io/ios/app/authenticator-full-protection/id1669903479) - [Amp Volume Booster: Boom me dB](https://appshunter.io/ios/app/amp-volume-booster-boom-me-db/id1671980849) - [Mobile Protection for iPhone](https://appshunter.io/ios/app/mobile-protection-for-iphone/id1672833802) - [Xfi-Cleaner: Anti & Security](https://appshunter.io/ios/app/xfi-cleaner-anti-and-security/id6445874386) - [Spam Cleaner: Super Protection](https://appshunter.io/ios/app/spam-cleaner-super-protection/id6445982335) - [Chat AI - Super Assistant Bot](https://appshunter.io/ios/app/chat-ai-super-assistant-bot/id6446248927) All apps by 丹丹 李: https://appshunter.io/developer/1666474477 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*