Möbius Sync vs PilotDocs
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).
PilotDocs
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PilotDocs is the document manager built specifically for pilots. Keep your licences, medical certificates, ratings, passports, visas and aircraft documents organised in one secure place with automatic expiry reminders. Built by a pilot, for pilots. Whether you're a student pilot, private pilot, commercial pilot or airline crew, PilotDocs helps you stay current so you can focus on flying—not paperwork. STAY AHEAD OF EXPIRY DATES • Automatic reminders 30, 7 and 1 day before expiry, plus on the day itself • Instantly see which documents are current, expiring soon or expired • Dashboard overview of your document status • Notification centre highlights documents needing attention STORE ALL YOUR AVIATION DOCUMENTS • Organise pilot licences, passports, visas, medical certificates, training certificates, ratings, aircraft documents and more • Attach photos from your camera or photo library • Import and view PDF documents • Record document numbers, issuing authority, issue dates, expiry dates and notes • Quickly search, sort and favourite important documents EXPORT PROFESSIONAL PDF REPORTS • Generate clean, branded PDF reports • Export a single document, an entire category or your complete document library • Optionally include document attachments • Share via AirDrop, Mail, Messages or any compatible app PRIVATE & SECURE • Protect your documents with Face ID, Touch ID or a passcode • No accounts required • No advertising • No analytics • No tracking • Your documents remain on your device and are protected using iOS security WORKS OFFLINE PilotDocs works completely offline. No internet connection is required to manage your documents. PILOTDOCS PRO Upgrade to PilotDocs Pro to securely sync your documents across your Apple devices using your personal iCloud account and enjoy automatic cloud backup. Your data remains encrypted and private. Designed for pilots. Built by a pilot. Download PilotDocs today and never miss another document renewal. Terms of Use: https://charteronesolutions.com/pilotdocs/terms
Screenshots
Verdict
The clearest difference is iOS requirement: Möbius Sync at 14.1 against PilotDocs's 17.0. On price, ads, in-app purchases and device support 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 PilotDocs sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Möbius Sync | PilotDocs |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (140 ratings) — better | — |
| Positive reviews | 55.0% of reviews | — |
| Number of ratings | 140 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Pickup Infinity Limited | Carel Van der Merwe |
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
PilotDocs
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Möbius Sync
- Unlimited file sync$4.99
PilotDocs
- PilotDocs Pro Monthly$1.991 Month
- PilotDocs Pro Yearly$19.991 Year









