Comparison

Proton Drive vs Nukii

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

Nukii

This app manages an intelligent flash drive with patented NFC unlocking technology. It ensures automatic locking and secure sharing of confidential documents, offering remote data clearing for lost devices.

Highlights
  • Patented NFC unlocking
  • Automatic locking
  • Secure document sharing
  • Remote data clearing
  • Read-only mode
  • Manage shared accounts
Read full description

More than 95% of flash drives do not have functions that provide adequate security protection. In the case that the flash drive is lost, trade secrets and confidential documents may be stolen! Introducing: Nukii Next Generation Intelligent Flash Drive - Exclusive patented NFC unlocking technology - Japan Good Design Award Confidential information stored in the cloud may be at risk of being hacked. Nukii flash drive always locks automatically, keeping everything inside protected. Mobile Nukii app is designed for management workflow, share the contents of the flash drive safely and selectively. The best choice for teams sharing confidential documents. Product Features: 1. Always locks automatically 2. Patented NFC sensor unlocking 3. Manage shared accounts by the Nukii App 4. Read-only mode to reduce the risk of virus 5. Remotely clear data incase lost of device 6. High quality memory chips

Screenshots

Proton Drive4 screens
Nukii4 screens

Verdict

The call

The clearest difference is rating: Proton Drive at 4.1 against Nukii's 3.4. Proton Drive also leads on review sentiment (37% vs 0%) and ratings volume (1.3K vs 5). Nukii's advantage is in-app purchases (none vs 6) and iOS requirement (14.0 vs 16.0). On price, ads and device support 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 6 in-app purchases, starting at $4.99 per month. Nukii asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Proton Drive holds the better App Store score, 4.1 against 3.4. That said, the two scores are not equally well evidenced: Proton Drive has 1.3K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 37% of Proton Drive's written reviews are positive against 0% of Nukii's.

UpkeepUpdate frequency

Proton Drive ships an update fortnightly, Nukii every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Proton Drive versus Nukii: the parameters behind the verdict, then further details
ParameterProton DriveNukii
PriceFreeFree
Rating4.1 (1.3K ratings) — better3.4 (5 ratings)
Positive reviews37.0% of reviews — better0.0% of reviews
Number of ratings1.3K — better5
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.014.0 — better
Further details — not scored
Size235 MB50 MB
Age rating4+4+
DeveloperProton AGMaktar Inc.

Customer experience

Proton Drive

All ratings1,261 ratings
Positive75.3%
Neutral8.4%
Negative16.3%
Written reviews909 reviews
Positive37.0%
Neutral21.8%
Negative41.3%

Nukii

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Nukii

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Proton Drive

Subscriptions6
  • Drive Plus 1 month$4.991 Month
  • Drive Plus 1 TB (1 month)$9.991 Month
  • Proton Unlimited 1 month$14.991 Month
Show 3 more
  • Drive Plus 1 year$47.901 Year
  • Drive Plus 1 TB (1 year)$95.991 Year
  • Proton Unlimited 1 year$119.001 Year
None

Nukii

No in-app purchases

Questions

Is Proton Drive free?
Proton Drive is free to download, with in-app purchases available.
Is Nukii free?
Nukii is free to download, with no in-app purchases.
Which has better reviews, Proton Drive or Nukii?
Proton Drive is rated higher. Proton Drive averages 4.1 out of 5 from 1.3K ratings, while Nukii averages 3.4 from 5 ratings.
Do Proton Drive or Nukii have ads?
Neither Proton Drive nor Nukii shows ads.
Which is updated more often, Proton Drive or Nukii?
Proton Drive ships an update fortnightly, and Nukii every 2 months. Most recently, Proton Drive was updated on November 7, 2026 and Nukii on November 3, 2026.

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