Mountain Duck review (2026): is it worth $49?
Mounts server and cloud storage as a drive on Mac and Windows
Black Friday: is there a Mountain Duck sale?
Mountain Duck report card
Fair · out of 4.0 · graded Nov 13, 2026
Best for S3, SFTP and WebDAV as a drive
Mountain Duck shows servers and cloud storage as a drive in Finder or File Explorer. But it is paid per seat at $49 a licence, the trial length isn't stated, and a future version 6 would be another purchase.
Who Mountain Duck is for
- Fits if you work on files in S3 or an SFTP server from ordinary desktop apps
- Works for teams who would rather buy licences once than pay a subscription
Who Mountain Duck is not for
- Skip it if you run Linux, as only macOS and Windows are listed
- Pricey if you need it for several people: each seat needs its own licence, $49 each
- Watch out: a licence covers one major version, so a version 6 would need an upgrade
- Watch out: the trial length isn't stated on the pages we read
- Not for you if you only want cloud storage in Finder for free, since ExpanDrive's free plan covers that
Why Mountain Duck gets a 2.4
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- BValue for money$49 one-time per user, with $193 for five. That is more than a year of the category's typical $3.33 a month, but under two.
- CFree plan and trialThere's a trial version before you buy a key, but the pages we read don't say how long it lasts or whether a card is asked for. No free plan.
- BFeaturesFTP, SFTP, WebDAV, SMB, S3, Azure, Dropbox, Google Drive, OneDrive and more, with on-demand files, offline folders and Cryptomator vaults. The listing shows no gap in the core job.
- CEase of useEvery connection has to be set up with server details or a cloud login. No store rating is on record.
- CPlatforms and integrationsmacOS 13 or later and Windows 10 or later. Computers only, with no Linux, phone or web version.
What these grades rest on. Graded from this listing, whose facts were read from Mountain Duck's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/mountain-duck#review"><img src="https://toolgpa.com/badge/mountain-duck.svg" alt="Mountain Duck: 2.4 GPA on ToolGPA" width="196" height="56"></a>Where Mountain Duck stands among desktop utilities
Mountain Duck's GPA of 2.4 is higher than 35 of the 186 other desktop utilities we grade, and level with 33.
It stands best on features (B, above 113 of 186) and worst on ease of use (C, above 5).
Each grade against the category
Every bar is all 187 desktop utilities we grade, cut by the letter each got. Mountain Duck’s own letter is outlined.
- BValue for moneyAbove 28 of 186, level with 26
- CFree plan and trialAbove 8 of 186, level with 66
- BFeaturesAbove 113 of 186, level with 72
- CEase of useAbove 5 of 186, level with 72
- CPlatforms and integrationsAbove 111 of 186, level with 60
Keep Mountain Duck, or make your own?
Keep it
To replace Mountain Duck you would be making files kept in step across devices without losing one. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 118 of the 186 other desktop utilities grade higher. It costs $49, paid once.
What you could not
- Files kept in step across devices without losing one.
- Storing and serving files for other people.
- A file manager working directly on your disk.
- A real app for macOS and Windows. Something home-made would be a web page.
- It is priced for each person, which means accounts and billing for a team.
- It plugs into other products, Amazon S3, Google Drive and Dropbox among them.
- End-to-end encryption done properly.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Mountain Duck’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Mountain Duck?
Mountain Duck connects remote servers and cloud storage to Finder on macOS and File Explorer on Windows, so files open in any application as if they were local. It is built on the open source foundation of Cyberduck and supports protocols such as SFTP, WebDAV, SMB and S3, plus services like Dropbox, Google Drive and OneDrive.
Worth knowing
- Runs on macOS 13 or later and Windows 10 or later only; no Linux version is listed.
- A licence is valid for one major version, so a future version 6 would need an upgrade purchase.
- The buy page shows the price only after the form loads; it is per seat, so each user needs a licence.
- Free to download as a trial, but the trial length is not stated on the pages we read.
Key features
- Integrated connect mode
- Version 5 syncs through the File Provider API on macOS and Cloud Files on Windows, so no device driver or network mount is installed.
- Smart synchronization
- All remote files are listed, and each is downloaded to the local disk only when opened. Chosen folders can be kept offline.
- Broad protocol and cloud support
- Connects over FTP, SFTP, WebDAV and SMB, and to Amazon S3, Google Storage, Azure, Dropbox, Google Drive, OneDrive, SharePoint, Box and others.
- Cryptomator vaults
- Client-side encryption using Cryptomator-compatible vaults, so data at rest is unreadable to the server or cloud provider.
- Team features
- File locking for Office documents on WebDAV servers, version history on versioned S3 buckets, and custom versioning on the server.
- Sharing and search
- Create expiring share links from the context menu on supported storage, and search remote files with Spotlight or Windows Search.
Mountain Duck pricing
As of Nov 13, 2026, Mountain Duck is a paid product with a free trial, starting at $49 per user, one-time (licence covers version 5).
- Starts at
- $49 per user, one-time (licence covers version 5)
- Free plan
- None
- Free trial
- Trial version of the app, then buy a registration key
| Plan | Price | What you get |
|---|---|---|
| Single user | $49per user, one-time, for version 5 | Per-seat licence, usable on any number of computers by the same user. Discounted upgrades for later major versions. |
| 5 users | $193for 5 users, one-time, for version 5 | Volume price for five seats, below five single licences. The buy page also offers 10, 20 and 50 users, and a custom quote. |
| 10 users | $348for 10 users, one-time, for version 5 | Volume price for ten seats. Larger teams and white-label deployments are handled as custom quotes. |
Read from mountainduck.io on Nov 13, 2026. Prices change, so confirm with Mountain Duck before you buy.
Ways to pay less
- Education30% academic discount
Mountain Duck offers a 30% discount coupon for academic use, requested by ticket from an institutional email address.
Stated on mountainduck.io - Other savings30% switcher or Cyberduck discount
A 30% discount is offered to owners of a Cyberduck key, or of a Transmit Disk, ExpanDrive or NetDrive licence, on request.
Stated on mountainduck.io
Works with
Mountain Duck alternatives
- Mountain Duck vs ExpanDrive
Free plan · from $29/mo
- Mountain Duck vs CloudMounter
Free plan · from $29/yr
- Mountain Duck vs Cyberduck
Free plan · from $10
- Mountain Duck vs Transmit
Free trial · from $45 one-time
- Mountain Duck vs ForkLift
Free trial · from $19.95 one-time
Common questions
Does Mountain Duck have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Mountain Duck is listed for macOS and Windows.
Does Mountain Duck have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Mountain Duck is listed for macOS and Windows.
Is Mountain Duck open source?
Mountain Duck is not described as open source on its own site, as read on Nov 13, 2026.
Is Mountain Duck end-to-end encrypted?
Mountain Duck describes itself as end-to-end encrypted on its own site. Nobody here has audited that.
Does Mountain Duck work offline?
Yes, according to its own site. What works without a connection differs by plan and platform, so check the vendor's page for the detail.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.