# SynoSync — Modern file sync for Synology > iOS file synchronization tool for Synology NAS, WebDAV, and SMB. (iPhone/iPad app by 成豪 董.) - Source: https://appshunter.io/ios/app/synosync/id6762731663 (this page in markdown: same URL + `.md`) - Developer: [成豪 董](https://appshunter.io/developer/1584985602) - Category: Productivity, Utilities - Price: Free with in-app purchases (on sale, was $1.99) - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.4 · 20 MB - Languages: Arabic, English, French, German, Japanese, Korean, Portuguese, Russian, Chinese, Spanish - Released: 2026-04-24 - Data updated: 2026-07-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/synosync/id6762731663/reviews.md ## What is SynoSync? SynoSync is a file synchronization tool crafted for iPhone and iPad, supporting Synology NAS, WebDAV, and SMB services. It is specifically designed to solve the long-standing issue where traditional sync software cannot flexibly integrate into the iOS "Files" app workflow. Simply log into your server, select a shared directory, and use the system file picker to specify a local target—allowing you to sync files to any authorized directory accessible by the Files app. The app supports three sync modes: Server-to-Local, Local-to-Server, and Two-Way synchronization, while offering flexible conflict resolution strategies (Keep Newer, Keep Local, Keep Remote, or Keep Both). With support for extended foreground syncing and automatic background syncing, it is the perfect tool for long-term maintenance of note libraries, document repositories, research data, and project files. ## Key features - Synology NAS, WebDAV, SMB support - iOS Files app integration - Server-to-Local sync - Local-to-Server sync - Two-Way synchronization - Flexible conflict resolution - Background syncing ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | SynoSync-Plus | $4.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/synosync/id6762731663/reviews.md ### 5/5 — 和群晖配套使用很方便 *2026-06-03* 刚好和家里群晖配套着用，方便备份，现在也兼容 DSM 、WebDAV 、SMB了，不错 **Developer response:** 感谢认可！ ## Frequently asked questions about SynoSync ### What is SynoSync? SynoSync is a file synchronization tool for iPhone and iPad that connects to Synology NAS, WebDAV, and SMB services. It allows flexible integration with the iOS Files app for managing your data. ### What sync modes does SynoSync offer? SynoSync supports three synchronization modes: Server-to-Local, Local-to-Server, and Two-Way synchronization, providing flexibility for different user needs. ### How does SynoSync handle file conflicts? The app offers flexible conflict resolution strategies, including Keep Newer, Keep Local, Keep Remote, or Keep Both, ensuring your files are managed according to your preferences. ### Can SynoSync sync files in the background? Yes, SynoSync supports extended foreground syncing and automatic background syncing, making it ideal for long-term maintenance of important files like documents and research data. ### What devices is SynoSync compatible with? SynoSync is designed for iPhone and iPad, supporting iOS devices. ### Is SynoSync free to use? Yes, SynoSync is available for free and does not feature advertisements or in-app purchases. ### How often is SynoSync updated? The latest version, 1.2.4, was released on June 23, 2026, indicating active development and regular updates for the application. ### What is the age rating for SynoSync? SynoSync has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 1.2.5 — 2026-07-02 Resolve the issue where clearing the cache shows that 0 KB has been cleared; fix the missing sync information before deletion caused by the triggering of the deletion threshold; add a button to cancel the deletion threshold; when the deletion threshold is triggered, display some of the file names pending deletion. ### 1.2.4 — 2026-06-23 Add support for the WebDAV protocol provided by Koofr. ### 1.1.5 — 2026-06-01 Added support for iOS 16.4! If you are using an older iOS version, we welcome your feedback on any issues encountered. Fixed a sync logic issue regarding the deletion of redundant local files when syncing only server-side changes. If you encounter any problems while using SynoSync, feel free to submit feedback via "About" -> "Feedback & Suggestions" inside the app. ### 1.1.4 — 2026-05-29 Added support for SMB protocol (Beta). Give it a try! Optimized widget content. The widget now presents sync results more intuitively via a 4-stage progress bar. Merged the Local Network and QuickConnect ID options in the server setup interface, making it much easier to add servers. If you encounter any issues while using the SMB protocol, feel free to give feedback via "About" -> "Feedback" within the app. ### 1.1.2 — 2026-05-21 Optimized DSM login expiration issue (Synology error 119). Compatible with DSM 6 login issues (Synology error 104). Optimized breakpoint resume during DSM download process. Added cache scanning and cleanup functions. Optimized background scheduling during non-charging periods. If you encounter any issues while using SynoSync, you can go to the "About" screen in the App and choose your preferred method under "Feedback" to let me know! ## More apps by 成豪 董 - [V2RMB](https://appshunter.io/ios/app/v2rmb/id6502951931) - [豆豆计时](https://appshunter.io/ios/app/id6785217191) All apps by 成豪 董: https://appshunter.io/developer/1584985602 --- *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 2026-07-08.*