# Epson DocumentScan vs Synology Drive

The clearest difference is rating: Synology Drive at 4.5 against Epson DocumentScan's 1.8. Synology Drive also leads on review sentiment (33% vs 11%) and ratings volume (4.2K vs 121). Epson DocumentScan's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Synology Drive holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: Synology Drive has 4.2K ratings behind it against 121, so its average is the more settled of the two. Written reviews point the same way: 11% of Epson DocumentScan's written reviews are positive against 33% of Synology Drive's.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 17, 2026.

## The numbers

| Metric | Epson DocumentScan | Synology Drive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (121 ratings)](https://appshunter.io/ios/app/epson-documentscan/id796829552/reviews) | **[4.5 (4.2K ratings)](https://appshunter.io/ios/app/synology-drive/id1267275421/reviews)** |
| Number of ratings | 121 | **4.2K** |
| Positive reviews | 10.8% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 21 MB | 279 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seiko Epson Corporation](https://appshunter.io/developer/326876195) | [Synology Inc.](https://appshunter.io/developer/321493109) |

## What reviewers say

### Epson DocumentScan

[App page](https://appshunter.io/ios/app/epson-documentscan/id796829552)

Scan documents directly from your Epson scanner to your Apple device. Preview, edit, and organize scanned pages before sending them via email, to other apps, or to popular cloud storage services.  Transfer files to your PC using iTunes.

**Highlights:** Direct scanning to iPhone, iPod touch, iPad, Edit scanned pages (rotation, re-ordering), Send files via email, Integrate with cloud services (Box, Dropbox, Evernote, Google Drive, OneDrive), Send data to PC via iTunes, Autosize and auto image type recognition

**In-app purchases:** none

**What reviewers like**

- ✅ Basic scanning functionality works
- 📱 WiFi connectivity available for mobile scanning
- 📄 Saves documents as PDF format
- ⚡ Quick setup process for compatible scanners
- 🎨 Works well with art canvas scanning

**What reviewers complain about**

- 🐛 Frequent WiFi connectivity issues
- ❌ Poor iOS/iPhone compatibility
- 🔌 Requires cellular data to be disabled on iOS devices
- 📤 Difficult file export and sharing functionality
- ⚙️ Missing advanced features compared to desktop app

**Reported bugs**

- App cannot find scanner even when connected to same network
- WiFi direct mode fails to establish connection
- App freezes on scanner search screen
- Crashes when attempting to save photos to camera roll
- Crashes when pressing 'scan more' during batch operations

**Requested features**

- Direct save to Files app and cloud storage (Dropbox, OneDrive, Google Drive)
- OCR support for searchable PDFs
- Bulk export of multiple files at once
- Higher DPI scanning options (600 DPI or higher)
- Automatic double-sided page detection


### Synology Drive

[App page](https://appshunter.io/ios/app/synology-drive/id1267275421)

Access and manage files stored on your Synology NAS from your mobile device. This app allows you to view various file types, including office documents, and offers convenient file management features like syncing, searching, and sharing on the go.

**Highlights:** Access Synology NAS files on the go, View documents, spreadsheets, and slides, Sync files, Search files, Share files, Move and label files

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and responsive
- 🔒 Secure private cloud
- 👍 Convenient remote access
- 🚀 Excellent integration with iOS Files app
- 👍 Great for photographers and mobile workers

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔋 High battery drain
- 👎 Unreliable sync and offline access
- 👎 Confusing and unintuitive user interface
- 🔍 Lacking search and organization features

**Reported bugs**

- Unable to log in with 2FA
- Sync tasks get stuck or fail
- Folders not showing content
- Incompatibility with latest iOS versions
- Duplicated files and folders after sync

**Requested features**

- Add support for offline folder sync
- Improve integration with iOS Files app
- Implement document editing capabilities
- Add option to customize file/folder naming
- Enhance audio/video playback features


## Frequently asked questions

### Is Epson DocumentScan free?

Epson DocumentScan is free to download, with no in-app purchases.

### Is Synology Drive free?

Synology Drive is free to download, with no in-app purchases.

### Which has better reviews, Epson DocumentScan or Synology Drive?

Synology Drive is rated higher. Epson DocumentScan averages 1.8 out of 5 from 121 ratings, while Synology Drive averages 4.5 from 4.2K ratings.

### Do Epson DocumentScan or Synology Drive have ads?

Neither Epson DocumentScan nor Synology Drive shows ads.

### Which is updated more often, Epson DocumentScan or Synology Drive?

Epson DocumentScan ships an update every 3 months, and Synology Drive every 3 months. Most recently, Epson DocumentScan was updated on October 17, 2026 and Synology Drive on October 17, 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.*