Name: Möbius Sync
Author: Pickup Infinity Limited

About Möbius Sync

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:
1. in the Möbius Sync sandbox and files can be added to and retrieved from shared folders via the iOS Files app; or
2. (PAID feature) by accessing other apps' sandboxes. This feature is EXPERIMENTAL and may break other app's functionality; or
3. (PAID featured) iOS Photo Library folders can be exported to other devices send-only.

Uses the open-source Syncthing engine internally.

Usage within the Möbius Sync sandbox is free up to 20MB. Unlimited file sync, including files in other apps' sanboxes is available for a one-time purchase.

NOTE: The functionality unlocked by in-app purchase is identical to that in Möbius Sync Pro (which is purchased up-front).

Latest updates

2.1.628 Oct 2026

Updated the Syncthing core to 2.1.6. Fixes a restoration bug where a valid purchase receipt could still be reported as “Unable to restore purchase” in some circumstances.

1.28.027 Jan 2025

Incorporates Syncthing 1.28.0 (https://github.com/MobiusSync/MobiusSync/issues/210) Enhancement: Support family sharing (https://github.com/MobiusSync/MobiusSync/issues/208) 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)