Resilio Sync vs Synctrain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Resilio Sync
Securely transfer files and back up photos between your devices without using third-party servers. Enjoy unlimited storage and speed, with direct peer-to-peer transfers for privacy and efficiency. Supports all file types across various platforms.
- Private cloud creation
- Secure direct file transfers
- Unlimited storage and speed
- Automatic camera backup
- Cross-platform device support
- Selective file syncing
Read full descriptionHide full description
Sync is the best way to transfer files between your Mac, PC, NAS, and even server. Create your own private cloud. Connect devices and sync files securely without sending them on third-party servers. We don’t limit your speed or storage space: our technology works especially well with huge files. No storage limits • Sync as much data as you have on your hard drives. Automatic camera backup • Sync will back up photos and videos as soon as you take them. • You can then delete photos from your phone and save space. Direct transfers, no cloud • Your information is never stored on servers in the cloud, so nobody can access it without your permission. • Transfer files directly and fast using peer-to-peer technology (p2p). Any device and platform • Access folders and upload files to your tablet, PC, Mac, NAS, and even server. Supports all file types • Add photos, videos, music, docs, and PDFs from other apps to any of your synced folders. Save space • Selective Sync lets you save only the files you need. To get the best performance and to avoid running up your data charges while syncing folders, we recommend leaving the "Use Cellular Data" setting off. By downloading or using this app, you agree to the Terms of Use: (https://www.resilio.com/legal/terms-of-use), Privacy Policy (https://www.resilio.com/legal/privacy) and End User License Agreement (https://www.resilio.com/legal/eula-sync).
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
Read full descriptionHide full description
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 ads: Synctrain at none against Resilio Sync's shown. Synctrain also leads on rating (4.9 vs 4.5) and monetization model (free vs free with in-app purchases). Resilio Sync's advantage is ratings volume (844 vs 123) and iOS requirement (11 vs 17.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Synctrain holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Resilio Sync has 844 ratings behind it against 123, so its average is the more settled of the two. Written reviews point the same way: 78% of Resilio Sync's written reviews are positive against 91% of Synctrain's.
Resilio Sync ships an update every 3 months, Synctrain every 6 weeks. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.
| Parameter | Resilio Sync | Synctrain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (844 ratings) | 4.9 (123 ratings) — better |
| Positive reviews | 77.7% of reviews | 91.0% of reviews — better |
| Number of ratings | 844 — better | 123 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 11 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Resilio Inc. | T-Shaped |
Customer experience
Resilio Sync
Synctrain
User reviews
Resilio Sync
From 844 App Store ratingsWhat we love
- 🚀 Fast and reliable syncing
- 🔒 Secure private cloud solution
- 👍 Seamless cross-platform integration
- 💡 Selective sync for efficient storage management
- 👍 Easy to set up and use
Room to improve
- 🐛 Occasional crashes and bugs
- 🔋 Lack of background sync on iOS
- 👎 Limited file management features within the app
- 👎 Outdated iOS integration, not optimized for newer versions
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
Resilio Sync
Reported bugs
3 issues- Syncing issues after iOS updates
- Inconsistent behavior when removing folders
- Camera roll backup not working as expected
Requested features
4 requests- Improved iOS integration with Files app
- Background sync for camera roll backup
- Built-in media player and gallery view
- Ability to select and move multiple files at once
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
Resilio Sync
No in-app purchases
Synctrain
No in-app purchases









