DS cloud vs Synctrain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DS cloud
Access and sync selected folders from your Synology NAS to your mobile device. Enjoy offline viewing of your files anywhere, with customizable sync settings for file size and type.
- Folder synchronization
- Offline file viewing
- Customizable sync settings
- File size limits
- File type filtering
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*You must own a Synology NAS to run this app. To get the full features of DS cloud, the version of the Cloud Station running on your DiskStation should be 4.0 and above. Versions starting from 2.10.4 would only support iOS 8 and onward* DS cloud is the mobile counterpart of Cloud Station on iOS devices. You can select the folders on your DiskStation that you wish to sync to your mobile devices, and make them available for offline viewing anywhere you go. DS cloud also allows you to decide how you'd like to sync: you can set the maximum file size as well as the types of file you wish to sync for each folder. Find out more features about the app on our website: www.synology.com > Solutions > File Syncing https://www.synology.com/dsm/6.1/software_spec/mobile#DScloud
Synctrain
Securely synchronize files and folders between your devices. Stream audio and video directly from other devices. Manage file sharing permissions to control access to your data.
- Secure file synchronization
- Full folder synchronization
- Specific file selection
- Audio and video streaming
- Cross-device file mirroring
- Customizable sharing permissions
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With Synctrain you can securely synchronize files with other devices that have Syncthing installed. You can choose to synchronize full folders, or choose specific files. With Synctrain you can also stream audio and video files from other devices. When you synchronize files, all changes, including deleting files, also happen on your other devices. Do not use Synctrain for back-up purposes, and always keep a back-up of your data. You decide with which devices you share which files. This also means the app makers cannot help you access or recover any lost files. This app is powered by Syncthing. This app is however not associated with or endorsed by Syncthing nor its developers. Please do not expect support from the Syncthing developers. Instead, contact the maker of this app if you have questions.
Screenshots
Verdict
The clearest difference is review sentiment: Synctrain at 89% against DS cloud's 23%. Synctrain also leads on rating (4.9 vs 2.5). DS cloud's advantage is iOS requirement (8.0 vs 17.0). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
Synctrain holds the better App Store score, 4.9 against 2.5. Both are backed by a comparable volume of ratings — 72 and 123 respectively. Written reviews point the same way: 23% of DS cloud's written reviews are positive against 89% of Synctrain's.
DS cloud ships an update every 2 months, Synctrain every 6 weeks. The most recent releases landed on September 16, 2026 and September 28, 2026 respectively.
| Parameter | DS cloud | Synctrain |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (72 ratings) | 4.9 (123 ratings) — better |
| Positive reviews | 23.4% of reviews | 89.5% of reviews — better |
| Number of ratings | 72 | 123 — better |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 77 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Synology Inc. | T-Shaped |
Customer experience
DS cloud
Synctrain
User reviews
DS cloud
From 72 App Store ratingsWhat we love
- 💾 Effective file synchronization between devices
- 🔒 Private cloud storage without third-party servers
- 📱 Works well with iPad and iPhone for document management
- ⚡ Fast sync speeds on local networks
- 🎯 Good integration with iWork applications
Room to improve
- 🐛 Crashes frequently on iOS 14+ versions
- ❌ Not compatible with DSM 7.0
- ⚠️ Version mismatch errors preventing login
- 🚫 Hasn't been updated in 3+ years
- 📉 Poor performance on newer iPhone models
Synctrain
From 123 App Store ratingsWhat we love
- 👍 Intuitive interface
- 🚀 Seamless sync between devices
- 🔓 Open-source and free
- 💡 Integrates with iOS Files app
Room to improve
- 🐛 Occasional connection issues
- 🔍 Could use more Apple-like design
Bugs and requests
DS cloud
Reported bugs
14 issues- App crashes on launch with iOS 14.2+
- Face ID causes app to crash immediately
- Touch ID crashes app on iPhone X/XS
- Version not up-to-date error despite fresh installation
- PDF files crash app when opened (2+ pages)
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- Subfolder synchronization not working
- Files appear as 0 bytes and cannot be opened
- Sync stops working after initial setup
- Connection errors on local network
- App freezes during file operations
- Share button functionality broken
- Unable to update credentials after password change
- Incompatibility with newer iOS versions
- Annotation function crashes app
Requested features
16 requests- Update app for iOS 14+ compatibility
- DSM 7.0 support
- Background synchronization capability
- On-demand file download (like Dropbox)
- Face ID and Touch ID support
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- PDF editing and annotation tools
- Automatic photo backup from camera roll
- Integration with iOS Files app
- Split-screen support for iPad
- Password protection for app access
- Ability to change password without unlinking account
- Create folders from within the app
- Recursive subfolder synchronization
- Search functionality across subfolders
- Thumbnail view for images
- Selective file synchronization
Synctrain
Reported bugs
2 issues- Occasional app crashes
- Sync delays on some devices
Requested features
2 requests- Direct photo/video sync to remote devices
- Faster initial connection to server
In-app purchases
DS cloud
No in-app purchases
Synctrain
No in-app purchases
