Möbius Sync vs LEAST
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).
LEAST
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Your most-used app should be the one you don't use. LEAST is the #1 App Challenge. Open it, leave it open, and put your phone down. The goal is simple: make LEAST your most-used app for the day. LEAST verifies the challenge locally with Apple's Screen Time report. On first launch, allow Screen Time and select LEAST once in Apple's app picker. LEAST ranks apps on this iPhone only; websites are excluded. Once Apple's Screen Time has finalized the previous day after midnight, a strict #1 finish adds a dot. Ties do not win. Free challenge: • Live rank, leading app name and time to #1 • Your current streak and a 35-day dot calendar • A quiet light or dark screen to leave open • Optional local daily reminders • 20 languages that follow your system language Optional LEAST Trophy is a one-time purchase with four presentation extras: • Private on-device archive of finalized results • Winner certificate and share card • Founder badge • Exclusive alternate app icon The complete challenge remains free. Trophy never changes Screen Time access, rank, dots, streaks or results. Rank and results are calculated inside Apple's isolated Screen Time report extension. LEAST never uploads Screen Time data to Blue Snake. No account, ads, analytics or tracking. Leave it open. Put your phone down. Do less.
Screenshots
Verdict
The clearest difference is device support: Möbius Sync at 3 against LEAST's 1. Möbius Sync also leads on iOS requirement (14.1 vs 26.4). On price, ads and in-app purchases 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 LEAST sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Möbius Sync | LEAST |
|---|---|---|
| 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 |
| Requires iOS | 14.1 — better | 26.4 |
| Further details — not scored | ||
| Size | 23 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Pickup Infinity Limited | Liudger Grunbauer |
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
LEAST
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Möbius Sync
- Unlimited file sync$4.99
LEAST
- LEAST Trophy$3.99
