Möbius Sync

Name: Möbius Sync
Rating: 3.8 (139 reviews)
Author: Pickup Infinity Limited

By: Pickup Infinity Limited App

File sync with Syncthing

Overview

Version:

1.28.0

Last updated: 2025-01-27

Features & Capabilities

Möbius Sync brings Syncthing to iPhone and iPad, enabling private, cloud-free file synchronization across devices. It supports multiple folders and remote devices, with folders created in the Möbius Sync sandbox and accessible via the iOS Files app.

The paid feature (experimental) allows access to other apps' sandboxes, expanding where you can sync. The extension uses the open-source Syncthing engine and offers free usage up to 20MB in the Möbius Sync sandbox; unlimited sync across apps and devices is available with a one-time purchase. Functionality unlocked by the in-app purchase mirrors Möbius Sync Pro (purchased upfront).

User Growth & Download Statistics

App Open Source Privacy & Security Data Developer Tools

By:

Pickup Infinity Limited

Rating:

3.80

(139) 1 new ratings

Version:

1.28.0 Last updated: 2025-01-27

Version code:

871981012

Creation date:

2020-11-22

Compatible devices:

Size:

23.31MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-19

Compare stats and ranking:

Ranking

# 143,739 ▼ 367

Other rankings

#31 in sync keyword 39 ▼ 7

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Pickup Infinity Limited

Apple Apps Store

https://apps.apple.com/us/app/m%C3%B6bius-sync/id1539203216

Website:

https://mobiussync.com

User Reviews

Users broadly praise Möbius Sync for enabling Syncthing on iOS, offering a one-time purchase, and delivering reliable, fast syncing across devices while preserving privacy without relying on iCloud. The app supports cross-platform syncing with desktops and performs well. However, reviewers repeatedly report a paywall-heavy model (free tier is limited), purchase restoration issues after reinstall, folder/setup bugs, occasional breaking changes after updates, and unexplained growth of app data. Overall, the app is powerful for Syncthing users who can tolerate licensing friction and setup quirks.

Pros

Brings Syncthing to iOS, enabling true cross-device syncing with desktop installs.
One-time, pay-once price instead of a subscription.
Reliable and fast syncing, including large data sets like tens of thousands of photos.
Privacy-friendly option that doesn't rely on iCloud.
Cross-platform compatibility with Windows/macOS/Linux through Syncthing.

Cons

Free tier is limited (about 20 MB) and a paywall is required for full syncing.
Reinstall often requires paying again or restoring purchases, causing frustration.
Folder setup is buggy (external folder vs label handling) and there’s little or no documentation.
Updates can introduce breaking changes or instability.
App data usage can grow unexpectedly (consumes storage) and is unclear.

Recent reviews

I bought the app. Had to reinstall and now I can not restore or re buy it.

by Lo*****, 2026-05-08

Title. Whenever I try to open a folder, and tap "external folder," it just doesn't work. No file explorer is brought up, no folder is created where I want it, etc.