Synctrain

Synctrain

Synchronize files securely

102 ratings
85 reviews
Free

Details

  • Released
  • Updated
  • April 5, 2025
  • May 27, 2026
Synctrain screenshot #1 for iPhone
Synctrain screenshot #2 for iPhone
Synctrain screenshot #3 for iPhone
Synctrain screenshot #4 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

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
Show original description

What users say

See all reviews

What's New in Synctrain

2.6

May 27, 2026

You can now configure file patterns to be ignored in selectively synced folders now as well. There is now an option to disable connectivity when connected over a metered connection and/or a cellular network. In photo backup, you can now enable the export of all assets in a burst photo set. It is now possible to download a full subdirectory and share or save it locally. This includes subdirectories in ZIP files. It is now possible to configure IPv6 addresses for peers, discovery, STUN and relaying. Bookmarks work again on iOS below 26. You can now disable block indexing, which reduces file size in many scenarios. The folder statistics are now calculated in a more consistent way. Connections to other devices running recent Syncthing versions are now more stable. This release updates Syncthing to v2.1, which contains various improvements to stability and performance as well.

More

User reviews

Hands down the best app doe Syncthing

Intuitive UI and fast. I’ve been using this for a couple of months and the connection to Syncthing on my Linux desktop is flawless. I use it to sync Obsidian and it’s a live saver. Thanks to the dev for adding this to the App Store.

Great for former Android users coming from Syncthing

No complaints (other than what’s limited by iOS compared to Android), does what it says and works great with lots of configurable settings. Easy to use UI, maintained, plus it’s open source, free, and doesn’t collect any information. Literally couldn’t ask for more!

Makes my iPad actually good for work

No more wasteful and slow cloud syncs, I just wave my iPad at my desktop in the morning when I leave my home, and then do it again at night.

It requires so little thought required once its up, it works every time, and its free. Incredible work.

Easy

Just a great way to sync my file’s securely

♡⸜(ˆᗜˆ˵ )⸝♡

Thank you so much for making this! Not only does it not harvest data, it’s FREE?! Not only is it not a subscription, it’s FREAKING FREE. Syncing works on my devices :)))
The fact that this app exists makes me happy :)
Thank you, kind coder.

User experience

🐞

Reported Bugs

2 issues

Occasional app crashes

Bug

Sync delays on some devices

Bug

Requested Features

2 requests

Direct photo/video sync to remote devices

Feature

Faster initial connection to server

Feature

FAQ

What does Synctrain do?

Synctrain allows you to securely synchronize files and folders between devices that have Syncthing installed. You can choose to sync entire folders or select specific files. It also enables you to stream audio and video files directly from your other devices.

How does file synchronization work?

When you synchronize files using Synctrain, any changes made, including deletions, are mirrored across all your connected devices. This ensures your files are consistent everywhere. However, it is crucial to remember that this app is not for backup purposes, and you should maintain separate backups of your data.

Is Synctrain free to use?

Yes, Synctrain is a free application. It does not have ads or in-app purchases, making it a completely free solution for your file synchronization needs.

What devices is Synctrain compatible with?

Synctrain is designed to work with other devices that have Syncthing installed. The specific compatibility will depend on the operating systems and versions of Syncthing supported on those devices.

Can Synctrain be used for backing up my files?

No, Synctrain explicitly states that it should not be used for backup purposes. While it synchronizes files across devices, it does not function as a backup solution. Always maintain a separate, independent backup of your important data.