# Qsirch vs Möbius Sync

The clearest difference is rating: Möbius Sync at 3.8 against Qsirch's 1.8. Möbius Sync also leads on review sentiment (55% vs 15%) and ratings volume (140 vs 6). Qsirch's advantage is in-app purchases (none vs 1). On price, ads and device support there is nothing between them.

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

Möbius Sync holds the better App Store score, 3.8 against 1.8. That said, the two scores are not equally well evidenced: Möbius Sync has 140 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 15% of Qsirch's written reviews are positive against 55% of Möbius Sync's.

Qsirch ships an update every 5 months, Möbius Sync every 2 months. The most recent releases landed on June 9, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Qsirch | Möbius Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (6 ratings)](https://appshunter.io/ios/app/qsirch/id1234168970/reviews) | **[3.8 (140 ratings)](https://appshunter.io/ios/app/mobius-sync/id1539203216/reviews)** |
| Number of ratings | 6 | **140** |
| Positive reviews | 15.4% of reviews | **55.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 56 MB | 23 MB |
| Requires iOS | 16.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [QNAP Systems, Inc.](https://appshunter.io/developer/355826923) | [Pickup Infinity Limited](https://appshunter.io/developer/1118833408) |

## What reviewers say

### Qsirch

[App page](https://appshunter.io/ios/app/qsirch/id1234168970)

This app enables rapid file discovery on your QNAP NAS. Perform full-text searches across multiple devices and utilize extensive filtering options to pinpoint specific files. Easily share your findings through various communication channels.

**Highlights:** Search multiple NAS devices, Full-text search for 6000+ file formats, 30+ filter conditions, File preview modes, Create shareable download links

**In-app purchases:** none


### 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 Qsirch free?

Qsirch 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, Qsirch or Möbius Sync?

Möbius Sync is rated higher. Qsirch averages 1.8 out of 5 from 6 ratings, while Möbius Sync averages 3.8 from 140 ratings.

### Do Qsirch or Möbius Sync have ads?

Neither Qsirch nor Möbius Sync shows ads.

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

Qsirch ships an update every 5 months, and Möbius Sync every 2 months. Most recently, Qsirch was updated on June 9, 2026 and Möbius Sync on September 25, 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.*