Sync vs My Cloud OS 5
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sync
Securely store, access, and share your files with end-to-end encryption. This cloud storage solution allows you to sync data across all your devices and collaborate with others through shared folders. Protect your sensitive information with robust privacy features.
- 5 GB free secure cloud storage
- Access files from any device
- Secure file sharing via links
- Collaborate with shared folders
- End-to-end encryption
- Access controls
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Sync’s encrypted cloud storage keeps your files safe, secure and private. Access your files from all of your computers and devices easily, and share your files securely with anyone. Features: * Get 5 GB of secure cloud storage free * Access files stored on any computer or device, from your phone or tablet * Upload your photos and videos to Sync * Send large files easily with links * Collaborate and share with teams through shared folders * Protect your files with built-in encryption and access controls How Sync protects your privacy: Sync's end-to-end encrypted cloud storage ensures that only you can access your data. We can't read your files - nor would we want to - ensuring that your documents, photos and videos are safeguarded from unauthorized access. We'd love your feedback! Contact us using the support link below.
My Cloud OS 5
Organize and back up content from multiple devices to your private network storage. Access, share, and collaborate on files remotely without costly subscriptions. Enjoy an optimized media experience for photos and videos.
- Automatic backups from multiple devices
- Remote file access from anywhere
- Easy content sharing and collaboration
- Organize photos and videos into albums
- Stream movies and music to devices
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Introducing My Cloud OS 5 Welcome to our fresh new My Cloud NAS software ecosystem featuring our latest security updates for enhanced data privacy, improved stability and reliability, a modern mobile and web app experience, and improved photo/video viewing and sharing capabilities. My Cloud OS 5 helps you easily back up and organize high volumes of content from multiple computers, smartphones, and tablets on your My Cloud NAS, on your own private network, and without costly subscriptions. Use the mobile or web app to remotely access and share files, photos and videos you save on your My Cloud NAS from anywhere with an Internet connection. COLLECT YOUR CONTENT IN ONE PLACE Set up automatic backups to save content from your multiple devices on your private My Cloud NAS. And with your files, photos, and videos organized in one place on your own network, you can easily streamline access to manage your projects and optimize workflows. ACCESS REMOTELY The My Cloud OS 5 mobile app makes your content available to your smartphone or tablet with an Internet connection, whether you’re at home or away. Stop lugging around external drives when you travel and simply access your important files with your smartphone or tablet. EASY SHARING AND COLLABORATION Easily share content with friends, family, and colleagues, or invite them to access your My Cloud NAS for seamless collaboration. My Cloud OS 5 makes it easy to share high-res photos and videos, a single file, or an entire folder using your smartphone or tablet. OPTIMIZED MULTI-MEDIA EXPERIENCE My Cloud OS 5 delivers a beautiful photo and video viewing experience, so you get the most out of your multi-media library. • Better Photo Viewing and Sharing: Preview RAW and HEIC photos before sending. Create albums to collect and organize photos for projects, special events, or just memories you want to share. Then, you can invite others to view or even add in their own photos. • Sharper Video Sharing: Share high-quality video with friends, family or clients without compromising on resolution. • Smooth Streaming: Download the Twonky Server or Plex Media Server to smoothly stream movies and music playlists stored on your My Cloud NAS to your TV, home entertainment system or mobile device. Key App Features: - Easily back up and organize high volumes of content from multiple smartphones and tablets on your private My Cloud NAS - Remotely access all the content saved on your private My Cloud NAS without costly subscriptions - Share high-res photos and videos, a single file, or an entire folder using your smartphone or tablet - Create an Album so you can easily share photos and videos with colleagues, clients, or family - Smoothly stream movies and music playlists stored on your My Cloud NAS to your mobile device For more information on Western Digital’s Vulnerability Disclosure Policy please visit: https://www.westerndigital.com/support/product-security/vulnerability-disclosure-policy
Screenshots
Verdict
The clearest difference is rating: My Cloud OS 5 at 4.8 against Sync's 4.2. My Cloud OS 5 also leads on ratings volume (16K vs 821). On price, review sentiment, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
My Cloud OS 5 holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: My Cloud OS 5 has 16K ratings behind it against 821, so its average is the more settled of the two. Written reviews split almost evenly too, at 51% and 51% positive.
Sync ships an update monthly, My Cloud OS 5 every 2 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | Sync | My Cloud OS 5 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (821 ratings) | 4.8 (16K ratings) — better |
| Positive reviews | 51.1% of reviews — better | 51.0% of reviews |
| Number of ratings | 821 | 16K — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 53 MB | 104 MB |
| Age rating | 4+ | 17+ |
| Developer | Sync.com Inc. | Western Digital Technologies, Inc. |
Customer experience
Sync
My Cloud OS 5
User reviews
Sync
From 821 App Store ratingsWhat we love
- 👍 User-friendly
- 🔒 Secure cloud storage
- 💡 Great value for the price
- 🚀 Fast and reliable
- 🇨🇦 Canadian-based company
Room to improve
- 🐛 Crashes and bugs
- 🔍 Lack of search functionality
- 🚧 Outdated and basic UI
- 🔻 Slow upload/download speeds
- 📂 Limited file management options
My Cloud OS 5
From 16K App Store ratingsWhat we love
- 🚀 Fast and responsive
- 🔒 Secure personal cloud storage
- 👍 Easy to access files remotely
- 👍 Convenient backup solution
- 👍 Great for media streaming
Room to improve
- 🐛 Indexing/syncing issues
- 🐛 Inconsistent app performance
- 🐛 Unreliable remote access
- 🔒 Forced to use WD account
- 👎 Downgrade from previous version
Bugs and requests
Sync
Reported bugs
5 issues- Unreliable camera roll backup
- Inconsistent file sync across devices
- Frequent app crashes and freezes
- Inability to access offline files
- Sync issues when switching devices
Requested features
5 requests- Improved iOS app integration with Files app
- Video playback and streaming support
- Bulk file management (rename, move, delete)
- Advanced sharing options and controls
- Better background sync for photos/videos
My Cloud OS 5
Reported bugs
4 issues- App crashes and login issues
- Incompatibility with newer iOS versions
- Unreliable remote connectivity
- Slow or incomplete file indexing
Requested features
5 requests- Ability to download/save files offline
- Improved file browsing and search
- Folder-level backup options
- Better media organization and playback
- More flexible access and sharing controls
In-app purchases
Sync
No in-app purchases
My Cloud OS 5
No in-app purchases









