KeePassium (KeePass passwords) vs Möbius Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeePassium (KeePass passwords)
This open-source password manager prioritizes user privacy and data control. It offers secure offline storage, biometric authentication, and seamless autofill for apps and websites. Advanced features like YubiKey support and password leak audits are available with a premium license.
- Offline password storage
- Biometric authentication (Face ID/Touch ID)
- Password AutoFill
- KeePass/KeePassXC compatibility
- Optional cloud sync
- YubiKey support (Premium)
- Password leak audit (Premium)
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KeePassium is an open-source password manager compatible with KeePass/KeePassXC. Built for IT professionals, power users and privacy enthusiasts, it keeps your data under your control. KeePassium is offline by default, open to review, and independently audited by Cure53. Security • Offline by default — privacy you can verify • Face ID / Touch ID — secure access without typing • Passkeys and one-time codes — when you need more than a password • YubiKey support — strong, hardware-backed protection [Premium] • Password leak audit — detects compromised passwords [Premium] Convenience • Password AutoFill — automatically sign in to apps and websites • Automatic sync — optional, works with major cloud providers or your own server • Multiple databases — share passwords with family and team members [Premium] • Quick registration — create new accounts without switching apps [Premium] • Enterprise storage — keep work passwords in your company’s cloud [Premium] Compatibility • Works with KeePass, KeePassXC, and other KeePass-compatible apps • Supports VoiceOver and large text sizes for accessibility • Premium license covers both iOS and macOS …and of course • No vendor lock-in • No analytics • No ads Privacy KeePassium does not collect any personal data. We sell the app, not its users. Privacy Policy: https://keepassium.com/privacy/ Terms of Service: https://keepassium.com/terms/app EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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).
Screenshots
Verdict
The clearest difference is rating: KeePassium (KeePass passwords) at 4.7 against Möbius Sync's 3.8. KeePassium (KeePass passwords) also leads on review sentiment (80% vs 55%) and ratings volume (1.4K vs 140). Möbius Sync's advantage is iOS requirement (14.1 vs 17.0). On price, ads, in-app purchases and monetization model 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. KeePassium (KeePass passwords) sells 9 in-app purchases, starting at $1.99 per month and Möbius Sync sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
KeePassium (KeePass passwords) holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: KeePassium (KeePass passwords) has 1.4K ratings behind it against 140, so its average is the more settled of the two. Written reviews point the same way: 80% of KeePassium (KeePass passwords)'s written reviews are positive against 55% of Möbius Sync's.
KeePassium (KeePass passwords) ships an update monthly, Möbius Sync every 2 months. The most recent releases landed on September 27, 2026 and September 25, 2026 respectively.
| Parameter | KeePassium (KeePass passwords) | Möbius Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.4K ratings) — better | 3.8 (140 ratings) |
| Positive reviews | 79.9% of reviews — better | 55.0% of reviews |
| Number of ratings | 1.4K — better | 140 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 14.1 — better |
| Further details — not scored | ||
| Size | 26 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | KeePassium Labs | Pickup Infinity Limited |
Customer experience
KeePassium (KeePass passwords)
Möbius Sync
User reviews
KeePassium (KeePass passwords)
From 1.4K App Store ratingsWhat we love
- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 Clean and intuitive UI
- 👍 Seamless cloud sync
- 👍 Excellent integration with iOS features
Room to improve
- 🐛 Occasional sync and connectivity issues
- 🐛 Unreliable autofill functionality
- 🔒 Concerns about data privacy and security
Möbius Sync
From 140 App Store ratingsWhat we love
- ✅ 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
Room to improve
- 🐛 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
Bugs and requests
KeePassium (KeePass passwords)
Reported bugs
3 issues- Database file not found errors
- Crashes and freezes on certain operations
- Inconsistent behavior when switching between devices
Requested features
4 requests- Support for more cloud storage providers
- Advanced password management features (tags, expiration, etc.)
- Improved organization and search capabilities
- Biometric unlock options for non-Face ID devices
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
In-app purchases
KeePassium (KeePass passwords)
- Premium7 Days trial$1.991 Month
- Premium1 Month trial$19.991 Year
- Donation$3.00
- Donation$5.00
- Donation$10.00
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- KeePassium 1.44 Premium$19.99
- KeePassium 1.51 Premium$29.99
- Version 2.5 Premium (iOS+Mac)$29.99
- Version 2.3 Premium (iOS+Mac)$29.99
Möbius Sync
- Unlimited file sync$4.99
Questions
Is KeePassium (KeePass passwords) free?
Is Möbius Sync free?
Which has better reviews, KeePassium (KeePass passwords) or Möbius Sync?
Do KeePassium (KeePass passwords) or Möbius Sync have ads?
Which is updated more often, KeePassium (KeePass passwords) or Möbius Sync?
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