# Möbius Sync vs G.A.P. Notes

The clearest difference is rating: G.A.P. Notes at 5.0 against Möbius Sync's 3.8. G.A.P. Notes also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 2 months). Möbius Sync's advantage is ratings volume (140 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

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

G.A.P. Notes holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Möbius Sync has 140 ratings behind it against 1, so its average is the more settled of the two.

Möbius Sync ships an update every 2 months, G.A.P. Notes every 3 days. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Möbius Sync | G.A.P. Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (140 ratings)](https://appshunter.io/ios/app/mobius-sync/id1539203216/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gap-notes/id6736628025/reviews)** |
| Number of ratings | **140** | 1 |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 23 MB | 68 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pickup Infinity Limited](https://appshunter.io/developer/1118833408) | [Gaming Application Project Labs, Inc.](https://appshunter.io/developer/1703141033) |

## What reviewers say

### 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


### G.A.P. Notes

[App page](https://appshunter.io/ios/app/gap-notes/id6736628025)

Manage your notes securely with cloud-based CRUD operations. Features custom authentication for login, registration, password recovery, and account deletion.

**Highlights:** Cloud-based CRUD operations, Secure note management, Custom authentication flow, User account login, Password recovery, Account deletion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Möbius Sync free?

Möbius Sync is free to download, with in-app purchases available.

### Is G.A.P. Notes free?

G.A.P. Notes is free to download, with no in-app purchases.

### Which has better reviews, Möbius Sync or G.A.P. Notes?

G.A.P. Notes is rated higher. Möbius Sync averages 3.8 out of 5 from 140 ratings, while G.A.P. Notes averages 5.0 from 1 ratings.

### Do Möbius Sync or G.A.P. Notes have ads?

Neither Möbius Sync nor G.A.P. Notes shows ads.

### Which is updated more often, Möbius Sync or G.A.P. Notes?

Möbius Sync ships an update every 2 months, and G.A.P. Notes every 3 days. Most recently, Möbius Sync was updated on October 13, 2026 and G.A.P. Notes on September 29, 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.*