Comparison

Proton Drive vs SkyMarks

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Proton Drive

Securely store and back up your files and photos with end-to-end encryption. Access your content across devices, share securely with password protection, and enjoy peace of mind with Swiss privacy laws. Offers free storage with upgrade options.

Highlights
  • End-to-end encrypted storage
  • Automatic photo and video backup
  • Secure link sharing with passwords
  • PIN/biometric protection
  • Offline file access
  • File version history
Features
Read full description

Proton Drive provides private and secure storage for your files and photos. With Proton Drive you can protect important documents, automatically back up cherished memories, and access your content across devices. All Proton Drive accounts come with 5 GB of free storage and you can upgrade to up to 1 TB of storage at any time. Trusted by over 100 million users, Proton Drive gives you an end-to-end encrypted vault where only you—and the people you choose—can access your files and photos. Proton Drive features: - Secure storage - Get 5 GB of free encrypted cloud storage with no file size limits. - Share content using secure links with password and expiration settings. - Keep your files and photos safe with PIN or biometric protection. - Access important files and photos even if your device is lost or damaged. Easy to use - Automatically back up photos and videos in their original quality. - Securely organize your cherished memories into albums. - Rename, move, and delete your personal files securely within the app. - Create, edit and collaborate on docs. - View your important files and memories – even when offline. - Restore files with version history. Advanced privacy - Stay private with end-to-end encryption – even Proton can’t view your content. - Secure your metadata, including filenames, sizes, and modification dates. - Protect your content with Swiss privacy laws, the strongest in the world. - Trust in our open-source code that is public and verified by experts. Secure up to 5 GB of free storage for your personal files, photos, and videos with Proton Drive.  Stay ahead with our releases and updates by connecting with us! - LinkedIn: https://www.linkedin.com/company/protonprivacy - Instagram: https://www.instagram.com/protonprivacy/ - X/Twitter: https://x.com/ProtonDrive - Reddit: https://www.reddit.com/r/ProtonDrive/ Terms of Service: https://proton.me/legal/terms Privacy Policy: https://proton.me/legal/privacy

About

SkyMarks

This app helps you save and organize posts from the Bluesky social media platform. It allows you to bookmark content from your browser and access it later across all your Apple devices. Features include searching by text, author, or image content, and organizing bookmarks with tags.

Highlights
  • Bookmark Bluesky posts
  • Cross-device synchronization
  • Search by text, author, or image
  • Tagging and filtering
  • Organize bookmarked content
Read full description

SkyMarks is the Bluesky bookmarks app for your iPhone, iPad and Mac. Bluesky is the biggest thing happening in social media in 2025. It seems like everyone is jumping on board, with over 31 million users as of February. When you jump in, though, you may find some things that you miss from your old social networks, like the ability to bookmark a post. It’s a common thing to want to save a post to come back to later. Maybe you want to think a while before responding. Maybe the post has a useful link in it that you want to come back to. Or maybe you just really like the post and want to keep it around. Until Bluesky decides to implement bookmarking itself, SkyMarks can be your Bluesky bookmark manager. To bookmark a post from your browser, just tap the share button (the button with the arrow pointing out of a box) and then select SkyMarks from the list of available options. Once you’ve bookmarked a post, it will be available in SkyMarks whenever you need it. SkyMarks synchs its bookmarks across all your devices that use the same Apple ID. So if you bookmark a post while you’re waiting in line at the grocery store, you’ll find it on your iPad when you’re reading in your living room or your Mac when you’re working at your desk. SkyMarks has robust features to find bookmarked posts. You can search by post text, author name, author handle or even your own notes. You can even search the text in images attached to posts you’ve bookmarked! You can also tag bookmarks and view bookmarks by tag, so you can use SkyMarks for multiple projects and still get to the bookmarks you need when you need them. SkyMarks is free to use and has no in-app purchases. It’s just here to make the transition to Bluesky a little easier for you. If you find a bug or want a feature, please provide feedback. SkyMarks will hopefully one day be open-source. There are a few issues that need to be figured out before its code is released to the public though.

Screenshots

Proton Drive4 screens
SkyMarks4 screens

Verdict

The call

The clearest difference is rating: SkyMarks at 5.0 against Proton Drive's 4.1. SkyMarks also leads on in-app purchases (none vs 9) and update cadence (every 5 days vs fortnightly). Proton Drive's advantage is ratings volume (1.2K vs 2). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Proton Drive sells 9 in-app purchases, starting at $0.99 per month. SkyMarks asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SkyMarks holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Proton Drive has 1.2K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Proton Drive ships an update fortnightly, SkyMarks every 5 days. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Proton Drive versus SkyMarks: the parameters behind the verdict, then further details
ParameterProton DriveSkyMarks
PriceFreeFree
Rating4.1 (1.2K ratings)5.0 (2 ratings) — better
Positive reviews37.0% of reviews—
Number of ratings1.2K — better2
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better17.6
Further details — not scored
Size235 MB13 MB
Age rating4+4+
DeveloperProton AGOld Jewel Software

Customer experience

Proton Drive

All ratings1,188 ratings
Positive74.3%
Neutral8.8%
Negative16.8%
Written reviews905 reviews
Positive37.0%
Neutral21.9%
Negative41.1%

SkyMarks

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Proton Drive

Reported bugs

4 issues
  • Frequent crashes and errors
  • Inconsistent file syncing across devices
  • Unable to access files uploaded from desktop
  • Issues with offline file access

Requested features

4 requests
  • Automatic photo/video backup
  • Ability to edit documents within the app
  • Seamless integration with other apps for file sharing
  • Linux desktop client

SkyMarks

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Proton Drive

Subscriptions7
  • Drive Lite 1 month$0.991 Month
  • Drive Plus 1 month$4.991 Month
  • Drive Plus 1 TB (1 month)$9.991 Month
Show 4 more
  • Proton Unlimited 1 month$14.991 Month
  • Drive Plus 1 year$47.901 Year
  • Drive Plus 1 TB (1 year)$95.991 Year
  • Proton Unlimited 1 year$119.001 Year
One-time2
  • Drive Plus$59.99
  • Proton Unlimited$149.99
None

SkyMarks

No in-app purchases

Questions

Is Proton Drive free?
Proton Drive is free to download, with in-app purchases available.
Is SkyMarks free?
SkyMarks is free to download, with no in-app purchases.
Which has better reviews, Proton Drive or SkyMarks?
SkyMarks is rated higher. Proton Drive averages 4.1 out of 5 from 1.2K ratings, while SkyMarks averages 5.0 from 2 ratings.
Do Proton Drive or SkyMarks have ads?
Neither Proton Drive nor SkyMarks shows ads.
Which is updated more often, Proton Drive or SkyMarks?
Proton Drive ships an update fortnightly, and SkyMarks every 5 days. Most recently, Proton Drive was updated on October 21, 2026 and SkyMarks on October 3, 2026.

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