Möbius Sync vs Swift Paperless
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Möbius Sync
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.
- 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
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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 either: 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. 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).
Swift Paperless
This app allows users to manage documents directly from their iOS device. It seamlessly integrates with a self-hosted document management system, ensuring data privacy and control. Easily find, categorize, and add new documents on the go.
- Native iOS integration
- Paperless-ngx compatibility
- Document finding
- Document categorization
- Add documents from phone
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Swift Paperless is a native iOS app that interacts with the popular Paperless-ngx document management software. Paperless-ngx is self-hosted, and therefore fully privacy preserving: you control your data! With Swift Paperless, it's easy to find, categorize and also add documents from your phone!
Screenshots
Verdict
The clearest difference is rating: Swift Paperless at 4.9 against Möbius Sync's 3.8. Swift Paperless also leads on review sentiment (97% vs 55%) and monetization model (free vs free with in-app purchases). Möbius Sync's advantage is iOS requirement (14.1 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Möbius Sync sells 1 one-off in-app purchase and Swift Paperless sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Swift Paperless holds the better App Store score, 4.9 against 3.8. Both are backed by a comparable volume of ratings — 140 and 68 respectively. Written reviews point the same way: 55% of Möbius Sync's written reviews are positive against 97% of Swift Paperless's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.
| Parameter | Möbius Sync | Swift Paperless |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (140 ratings) | 4.9 (68 ratings) — better |
| Positive reviews | 55.0% of reviews | 96.8% of reviews — better |
| Number of ratings | 140 — better | 68 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Pickup Infinity Limited | Paul Gessinger |
Customer experience
Möbius Sync
Swift Paperless
Bugs and requests
Möbius Sync
Reported bugs
16 issues- 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
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- Settings reset after app updates
- External folder bookmark path cannot be changed
- .stfolder sync failures and naming conflicts
- Sync hangs at intermediate percentages
- Files not appearing in designated folders despite sync confirmation
- App crashes and becomes unresponsive
- Language preference not saved between sessions
- Syncthing disabled errors with no explanation
- Quick Sync feature not working reliably
- Accessibility issues with VoiceOver
- App storage consuming excessive disk space (10GB+)
Requested features
15 requests- 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
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- Widget for continuous background operation
- Photo library backup functionality
- Family sharing support for purchases
- Better UI/UX with custom frontend instead of web interface
- Automatic sync without manual app opening
- Support for untrusted devices
- Folder encryption support
- Location-based sync triggers
- More frequent Syncthing core updates
- Better documentation and setup guides
Swift Paperless
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Möbius Sync
- Unlimited file sync$4.99
Swift Paperless
- Coffee money$3.99
- Proper thank-you$8.99
- Above and beyond$17.99
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- Legendary generosity$44.99
Questions
Is Möbius Sync free?
Is Swift Paperless free?
Which has better reviews, Möbius Sync or Swift Paperless?
Do Möbius Sync or Swift Paperless have ads?
Which is updated more often, Möbius Sync or Swift Paperless?
Other comparisons
