# Resilio Sync vs Möbius Sync

The clearest difference is rating: Resilio Sync at 4.5 against Möbius Sync's 3.8. Resilio Sync also leads on in-app purchases (none vs 1) and review sentiment (78% vs 55%). Möbius Sync's advantage is ads (none vs shown). On price, update cadence, monetization model and device support there is nothing between them.

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

Resilio Sync holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Resilio Sync has 844 ratings behind it against 140, so its average is the more settled of the two. Written reviews point the same way: 78% of Resilio Sync's written reviews are positive against 55% of Möbius Sync's.

Resilio Sync ships an update every 3 months, Möbius Sync every 2 months. Both last shipped on September 20, 2026.

## The numbers

| Metric | Resilio Sync | Möbius Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (844 ratings)](https://appshunter.io/ios/app/resilio-sync/id1126282325/reviews)** | [3.8 (140 ratings)](https://appshunter.io/ios/app/mobius-sync/id1539203216/reviews) |
| Number of ratings | **844** | 140 |
| Positive reviews | **77.7% of reviews** | 55.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 31 MB | 23 MB |
| Requires iOS | **11** | 14.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Resilio Inc.](https://appshunter.io/developer/1126282324) | [Pickup Infinity Limited](https://appshunter.io/developer/1118833408) |

## What reviewers say

### Resilio Sync

[App page](https://appshunter.io/ios/app/resilio-sync/id1126282325)

Securely transfer files and back up photos between your devices without using third-party servers. Enjoy unlimited storage and speed, with direct peer-to-peer transfers for privacy and efficiency. Supports all file types across various platforms.

**Highlights:** Private cloud creation, Secure direct file transfers, Unlimited storage and speed, Automatic camera backup, Cross-platform device support, Selective file syncing

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and reliable syncing
- 🔒 Secure private cloud solution
- 👍 Seamless cross-platform integration
- 💡 Selective sync for efficient storage management
- 👍 Easy to set up and use

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔋 Lack of background sync on iOS
- 👎 Limited file management features within the app
- 👎 Outdated iOS integration, not optimized for newer versions

**Reported bugs**

- Syncing issues after iOS updates
- Inconsistent behavior when removing folders
- Camera roll backup not working as expected

**Requested features**

- Improved iOS integration with Files app
- Background sync for camera roll backup
- Built-in media player and gallery view
- Ability to select and move multiple files at once


### 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


## Frequently asked questions

### Is Resilio Sync free?

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

### Is Möbius Sync free?

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

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

Resilio Sync is rated higher. Resilio Sync averages 4.5 out of 5 from 844 ratings, while Möbius Sync averages 3.8 from 140 ratings.

### Do Resilio Sync or Möbius Sync have ads?

Resilio Sync shows ads; Möbius Sync does not.

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

Resilio Sync ships an update every 3 months, and Möbius Sync every 2 months. Most recently, Resilio Sync was updated on September 20, 2026 and Möbius Sync on September 20, 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.*