# Möbius Sync Pro — File sync with Syncthing

> iOS file synchronization tool using the open-source Syncthing engine. (iPhone/iPad app by Pickup Infinity Limited.)

- Source: https://appshunter.io/ios/app/mobius-sync-pro/id1671184333 (this page in markdown: same URL + `.md`)
- Developer: [Pickup Infinity Limited](https://appshunter.io/developer/1118833408)
- Category: Productivity, Utilities
- Price: $4.99
- Rating: 4.00/5 from 27 App Store ratings · 25 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.1 · 22 MB
- Languages: American English, Arabic, Basque, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Finnish and 27 more
- Released: 2023-03-04
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/mobius-sync-pro/id1671184333/reviews.md

## What is Möbius Sync Pro?

Möbius Sync brings Syncthing to your iPhone or iPad, allowing you to synchronize selected files between iOS devices and other devices supported by Syncthing, without the need for any cloud service.

Supports multiple folders and multiple remote devices. Synchronized folders can be created either:
1. in the Möbius Sync sandbox and files can be added to and retrieved from shared folders via the iOS Files app; or
2. by accessing other apps' sandboxes. This feature is EXPERIMENTAL and may break other app's functionality.

Uses the open-source Syncthing engine internally.

NOTE: The functionality in this Möbius Sync Pro app variant is identical to that which can unlocked by in-app purchase is in Möbius Sync (Freemium) - that has limited functaionality available for free for users who wish to try before purchase.

## Key features

- File synchronization without cloud services
- Supports multiple folders
- Supports multiple remote devices
- Integrates with iOS Files app
- Uses open-source Syncthing engine

## Recent user reviews (10 of 25)

All indexed reviews: https://appshunter.io/ios/app/mobius-sync-pro/id1671184333/reviews.md

### 1/5 — Not reliable for Obsidian sync

*2026-07-26, version 1.28.0*

I bought Möbius Sync to sync my Obsidian vault with Syncthing on iPhone/iPad. I regret it.

The app is not reliable. It struggles with iOS background syncing, requires manual babysitting, and has caused repeated sync/conflict problems. I should not have to keep opening the sync app before seeing that my notes are current.

It simply will not sync in the background I have to open Möbius Sync and let it finish sinking for a few minutes before I can start using Obsidian on the iPhone - each and every time.

For a paid app, it needs much better reliability, clearer conflict handling, and stronger protection against bad sync states. If you need dependable Obsidian sync, I would avoid it.

### 5/5 — A great alternative to iCloud

*2026-03-09*

Of course you need to set up your own Syncthing server at home - but that is the whole purpose … your own data, your own privacy, and no iCloud fees.

It works flawlessly as a SynchThing client - 100% compatible with the Linux and Windows versions. Haven’t tied compatibility with MacOS, but I bet it’s compatible with that too. It’s Syncthing after all. Well done folks!

### 4/5 — 正常使用

*2026-01-24*

t

### 4/5 — Perfect

*2025-09-02*

The best solution for obsidian sync. Also removes lag of icloud sync between two devices. Sometimes hangs after long delay. But battery saving is ok.

### 5/5 — Excellent app for syncing.

*2025-06-08, version 1.28.0*

Way better than Resilio Sync.

### 5/5 — Works great!

*2025-06-03, version 1.28.0*

I’ve been using this app for months now. Works great with Syncthing.  Syncthing setup on Linux is sometimes “fun”. If you get past setting up Syncthing, then Moebius is pretty easy. I’m syncing two phones to a backup location on a Proxmox container, and to my Linux workstation.

### 5/5 — So good

*2025-05-02, version 1.28.0*

God dang this is beautiful. 
I was about to sell my iPad to get android tablet for syncthing. And this app saved me to spend money. 
Thank you

### 1/5 — Non-functional, Over priced, Dishonest

*2025-02-20, version 1.28.0*

Like the title says, this app is non-functional, the error messages provide no information when its unable to sync and it fails frequently… They commonly appear to be several versions behind which, seems quite scummy considering i got the paid addition… and of course the app claims it can sync things and does not do so, It makes promises that it can’t possibly fulfill from developers who seemingly do not care. If your a fan if wasting money, buy this app…

### 5/5 — Syncthing 😤😤😤👌👌👌

*2024-11-02*

🙏🙏🙏😃😃😃👍👍👍

### 2/5 — Too glitchy

*2024-10-11, version 1.27.9*

It’s great having syncthing on iOS but you can’t just run this and forget about it. On Android it’s always running and I never have to fiddle with it. On iPad it regularly stops syncing and when I bring the app to focus, the display goes all wonky and I have to restart it. Good idea but not reliable.

## Frequently asked questions about Möbius Sync Pro

### What is Möbius Sync Pro?

Möbius Sync Pro is an iOS application that enables file synchronization between your iPhone or iPad and other devices that support the Syncthing protocol. It allows for direct peer-to-peer file sharing without the need for any intermediary cloud services.

### How does Möbius Sync Pro handle file synchronization?

You can synchronize files by creating folders within the app's sandbox and accessing them via the iOS Files app, or by experimentally accessing other apps' sandboxes. It supports synchronizing multiple folders across multiple remote devices.

### Is Möbius Sync Pro free to use?

No, Möbius Sync Pro is a paid application available for $4.99. The functionality is identical to the Pro version unlocked via in-app purchase in the freemium version, Möbius Sync.

### What devices is Möbius Sync Pro compatible with?

Möbius Sync Pro is compatible with iPhone, iPad, and iPod touch devices. It requires iOS 4+ and is designed for a wide range of Apple mobile devices.

### How often is Möbius Sync Pro updated?

The app was last updated on January 27, 2025, with version 1.28.0. This indicates a commitment to ongoing maintenance and potential feature additions.

### What is the age rating for Möbius Sync Pro?

Möbius Sync Pro has an age rating of 4+. This suggests it is suitable for a general audience and does not contain mature content.

### Does Möbius Sync Pro require an internet connection for syncing?

While Syncthing itself operates peer-to-peer, an active network connection (Wi-Fi or cellular) is required for devices to discover each other and transfer files. It does not rely on a central cloud server.

### What are the benefits of using Syncthing via Möbius Sync Pro?

Using Syncthing through Möbius Sync Pro offers enhanced privacy and control over your files, as data is transferred directly between your devices. It also provides flexibility in managing your synchronized data without subscription fees or storage limits imposed by cloud providers.

## Version history (last 5 releases)

### 1.28.0 — 2025-01-27

Incorporates Syncthing 1.28.0 (https://github.com/MobiusSync/MobiusSync/issues/210)

Enhancement: Photo Collection option: export as read-only (https://github.com/MobiusSync/MobiusSync/issues/182)

Bug fix: External folder stops syncing after restore onto new device (https://github.com/MobiusSync/MobiusSync/issues/201)
Bug fix: Background crash reported via TestFlight (https://github.com/MobiusSync/MobiusSync/issues/211)
Bug fix: External Bookmarks Persist Even When Folders Are Removed (https://github.com/MobiusSync/MobiusSync/issues/188)
Bug fix: Vision Pro - camera used for QR Code scanning (https://github.com/MobiusSync/MobiusSync/issues/214)

### 1.27.10 — 2024-10-25

Incorporates Syncthing 1.27.10 (https://github.com/MobiusSync/MobiusSync/issues/191)

Adds Photo Collection folder options:
- toggle photos/videos/live photos (https://github.com/MobiusSync/MobiusSync/issues/178)
- set timezone for file stamping (https://github.com/MobiusSync/MobiusSync/issues/180)
- maximum assets to scan (https://github.com/MobiusSync/MobiusSync/issues/181)
- sync modified versions of photos/videos (https://github.com/MobiusSync/MobiusSync/issues/192)
- include in Folder Defaults (https://github.com/MobiusSync/MobiusSync/issues/198)

Other fixes/enhancements:
- fix flickering on reopening app after a while (https://github.com/MobiusSync/MobiusSync/issues/193)
- support syncing user-created folders under "On my iPhone" (https://github.com/MobiusSync/MobiusSync/issues/197)

### 1.27.9 — 2024-07-21

NEW: Send your photos/videos from iOS to other Syncthing devices - the first EXPERIMENTAL implementation of send-only Photo Collection folders. Please consult the FAQ and GitHub, and provide your feedback to support the ongoing development of this feature.

Also:
- Upgraded to Syncthing 1.27.9 core
- Bug fix: Allowing pattern with vowel mutation in its name in .stignore doesn't work
- Bug fix: Settings dialogs do not reset fully to defaults between appearing

### 1.27.8 — 2024-06-23

Incorporates Syncthing 1.27.8.

Bug fixes and enhancements: https://github.com/MobiusSync/MobiusSync/milestone/8?closed=1

### 1.23.2 — 2023-03-07

Incorporates Syncthing 1.23.2.
Fixes problem with Filesystem Watcher Errors - now silently disabled as they serve no purpose on iOS.

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## More apps by Pickup Infinity Limited

- [TWiTfinity](https://appshunter.io/ios/app/twitfinity/id1498333767)
- [Möbius Sync](https://appshunter.io/ios/app/mobius-sync/id1539203216)
- [Heckle Live Streaming](https://appshunter.io/ios/app/heckle-live-streaming/id1562665499)

All apps by Pickup Infinity Limited: https://appshunter.io/developer/1118833408

## Related topics

[moebius](https://appshunter.io/ios/topics/moebius) · [ixpand sync](https://appshunter.io/ios/topics/ixpand-sync) · [vista print](https://appshunter.io/ios/topics/vista-print) · [mobius](https://appshunter.io/ios/topics/mobius)

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*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 2026-08-28.*