Obsidian vs SynoSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Obsidian
Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.
- Local Markdown file storage
- Customizable toolbar
- Graph view for connections
- Community plugins
- Themes
- iCloud sync
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Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It is a second brain, for you, forever. Now available on the go for iOS! Features include: - Customizable toolbar - Pull down quick actions - Graph view - Community plugins - Themes - Sidebar pinning for tablet - iCloud vaults
SynoSync
This app synchronizes files between your iOS device and Synology NAS, WebDAV, or SMB servers. It integrates seamlessly with the iOS Files app, offering multiple sync modes and conflict resolution options for efficient file management.
- 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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: SynoSync at 100% against Obsidian's 62%. SynoSync also leads on rating (5.0 vs 4.5) and update cadence (every 4 days vs every 3 weeks). Obsidian's advantage is in-app purchases (none vs 1) and ratings volume (2.7K vs 2). On price, ads, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SynoSync sells 1 one-off in-app purchase. Obsidian asks for nothing beyond the download.
SynoSync holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Obsidian has 2.7K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 62% of Obsidian's written reviews are positive against 100% of SynoSync's.
Obsidian ships an update every 3 weeks, SynoSync every 4 days. Both last shipped on October 1, 2026.
| Parameter | Obsidian | SynoSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.7K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 62.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.7K — better | 2 |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Best chart rank | #148 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 38 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Dynalist Inc. | 成豪 董 |
Customer experience
Obsidian
SynoSync
Bugs and requests
Obsidian
Reported bugs
3 issues- Sync issues leading to data loss
- Freezing and crashing on mobile devices
- Editing bugs and text input issues
Requested features
5 requests- Improved sorting and organization options
- WYSIWYG editing on mobile
- Better integration with other cloud storage services
- More intuitive onboarding process for new users
- Native mobile widgets and share sheet integration
SynoSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Obsidian
No in-app purchases
SynoSync
- SynoSync-Plus$4.99
