# Möbius Sync vs OneSync

The clearest difference is rating: Möbius Sync at 3.8 against OneSync's 1.0. Möbius Sync also leads on ratings volume (140 vs 1). OneSync's advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Möbius Sync sells 1 one-off in-app purchase. OneSync asks for nothing beyond the download.

Möbius Sync holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Möbius Sync has 140 ratings behind it against 1, so its average is the more settled of the two.

Möbius Sync ships an update every 2 months, OneSync every 2 weeks. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Möbius Sync | OneSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (140 ratings)](https://appshunter.io/ios/app/mobius-sync/id1539203216/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/onesync-file-share/id6753986352/reviews) |
| Number of ratings | **140** | 1 |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 23 MB | 26 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pickup Infinity Limited](https://appshunter.io/developer/1118833408) | [JUKI JUNG](https://appshunter.io/developer/1212179274) |

## What reviewers say

### Möbius Sync

[App page](https://appshunter.io/ios/app/mobius-sync/id1539203216)

Synchronize files between your iOS devices and other Syncthing-supported platforms without relying on cloud storage. Manage multiple folders and remote devices, with options for sandbox or experimental cross-app sandbox syncing.

**Highlights:** File synchronization between iOS and other Syncthing devices, No cloud service required, Supports multiple folders and remote devices, Sync within app sandbox or other app sandboxes (paid), Uses open-source Syncthing engine

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited file sync | $4.99 | one-time |

**What reviewers like**

- ✅ Effective Syncthing implementation for iOS
- 💰 Fair one-time purchase model (no subscription)
- 🔒 Privacy-focused peer-to-peer syncing
- 📱 Good Files app integration
- ⚡ Fast file synchronization when working

**What reviewers complain about**

- 🐛 Outdated internal Syncthing version (1.28 vs 2.x)
- 💸 Aggressive paywall at 20MB free limit
- 🔌 No true background sync (iOS limitation)
- 🚫 Cannot sync iOS Photos app natively
- ⚠️ Inconsistent purchase restoration across devices

**Reported bugs**

- Syncthing version incompatibility with v2.x devices
- Device discovery limited to 1 of 5 paired devices
- Insufficient space errors despite available storage
- Purchase dialog rendering issues on older devices
- Purchase not persisting after app reinstall

**Requested features**

- Update internal Syncthing to version 2.x or higher
- iOS Photos app sync capability (at least one-way upload)
- True background synchronization
- Selective folder sync to save storage space
- File Provider extension for deeper iOS integration


### OneSync

[App page](https://appshunter.io/ios/app/onesync-file-share/id6753986352)

Instantly share files and text between all your devices without needing to sign up. Use QR codes for quick connections and enjoy secure, end-to-end encrypted transfers. Ideal for personal use or quick transfers to friends.

**Highlights:** Instant cross-platform file sharing, QR code for quick session joining, Secure end-to-end encryption, No sign-up required, Share text and files

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Möbius Sync free?

Möbius Sync is free to download, with in-app purchases available.

### Is OneSync free?

OneSync is free to download, with no in-app purchases.

### Which has better reviews, Möbius Sync or OneSync?

Möbius Sync is rated higher. Möbius Sync averages 3.8 out of 5 from 140 ratings, while OneSync averages 1.0 from 1 ratings.

### Do Möbius Sync or OneSync have ads?

Neither Möbius Sync nor OneSync shows ads.

### Which is updated more often, Möbius Sync or OneSync?

Möbius Sync ships an update every 2 months, and OneSync every 2 weeks. Most recently, Möbius Sync was updated on October 3, 2026 and OneSync on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*