Comparison

Proton Pass vs PDF Dark

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

Head to head
About

Proton Pass

Secure your online identity with this free, open-source password manager. It offers end-to-end encryption, unlimited password storage across devices, and features like 2FA generation and email alias creation. Protect your accounts and enhance your digital security.

Highlights
  • Unlimited password storage
  • Cross-device synchronization
  • Autofill logins
  • 2FA code generation
  • Email alias creation
  • Data breach monitoring
  • Secure sharing
Features
Read full description

Get Proton Pass, the free password manager created by the team behind Proton Mail. It’s open source, end-to-end encrypted, and protected by Swiss privacy laws. Secure your online identity with Proton Pass. Pass has no ads or data collection and is free forever on all your devices. Create and store unlimited passwords on unlimited devices, autofill logins, generate 2FA codes, create email aliases, and more. WITH PROTON PASS YOU CAN: • Sign in faster with Proton Pass autofill: You no longer need to copy and paste your username and password with our advanced autofill technology. • Store and auto-sync unlimited logins on unlimited devices: Create, store, and manage your credentials from anywhere with our browser extension and mobile apps. • Share any data stored in Proton Pass securely: Share passwords, usernames, credit cards and notes securely with trusted contacts. Your data stays end-to-end encrypted, and you can revoke access anytime. • Enhance your online security: Identify vulnerable accounts with Data Breach Monitoring and Password Health. • Access your data from anywhere, on any device, with seamless synchronization across all your platforms." • Protect your online identity: Whenever you sign up for a new online account, automatically create an alias to keep your actual email address protected. • Add security layers to your accounts: Protect your account with 2FA authentication and custom PIN protection. Activate Proton Sentinel for advanced security against hackers. PROTON PASS FEATURES INCLUDE: • Built in password generator: Generate unlimited secure passwords and safely store them for all your accounts. Avoid weak passwords and never worry about forgetting the complex passwords again. • Built in 2FA authenticator: Enhance your accounts security with 2FA codes, easily generated within the app for any website and autofill when you log in. • Secure Vaults: Organize & share login information, payment details and notes into secure vaults, which you can share with family, friends, or co-workers. • Email Aliases: With Hide-my-email feature, protect your identity by creating email aliases, preventing your personal email address from being disclosed or leaked. • Credit Card Support: Securely store your credit card details for quick access. • Pass Monitor: Identifies weak or reused passwords, inactive 2FA fields and sends immediate alerts on data leaks with dark web monitoring. • End-to-End Encryption: All your login data is protected with end-to-end encryption, ensuring that only you can access it. • Biometric Login Access: Add an extra layer of security to Proton Pass by using your fingerprint or face to unlock the app. • Spotlight Search: Easily find your information, with one click via iPhone Spotlight Search. • Bookmark items: Pin frequently needed items to the top of your Proton Pass app and browser extension to easily find them. • Bulk edition: Activate bulk edition to handle items in a hassle-free way. • Item history: Keep track of your item changes with item history, knowing when you last changed any login information. • Encrypted Notes: Safely store sensitive information within the app, accessible only to you. • Offline Access: Access your stored passwords and notes in Pass from anywhere, even when your device has no internet connection. • Open Source: Trust is built on transparency. Proton Pass is open source, allowing you to verify our security claims for yourself, like all Proton services. • Easily import passwords: Easily import passwords from any password manager or CSV file. • No Ads or Data Collection 
 For more information, visit: https://proton.me/pass Our open-source code base: https://github.com/protonpass/ios-pass Terms of service: https://proton.me/legal/terms Learn more about Proton: https://proton.me

About

PDF Dark

Transform bright PDF pages into a comfortable dark mode for easier reading at night. Reduce eye strain, improve focus, and potentially save battery life. Enjoy a smoother reading experience on your devices.

Highlights
  • Dark mode for PDFs
  • Reduced eye strain
  • Improved focus
  • Battery saving
  • Multi-device support
Features
Read full description

PDF Dark — Night Reading, Without the Pain Tired of burning eyes and sleepless nights from bright PDFs? PDF Dark flips white pages into a smooth black background with crystal-clear text — perfect for late-night reading. Why You’ll Love It Instant Comfort: No more white glare. Read Longer: Less strain, better focus. Sleep Better: Protect your eyes and rest naturally. Battery Saver: Dark pixels use less power. Multi-Device: Works on iPhone, iPad, and Mac. For students, night owls, and professionals who read after dark. Download now — your eyes will thank you.

Screenshots

Proton Pass4 screens
PDF Dark4 screens

Verdict

The call

The clearest difference is price: Proton Pass at Free against PDF Dark's $3.99. Proton Pass also leads on rating (4.8 vs 4.0) and update cadence (fortnightly vs every 11 months). PDF Dark's advantage is in-app purchases (none vs 2). On 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

Proton Pass is free to download; PDF Dark costs $3.99 up front. Proton Pass sells 2 in-app purchases, starting at $35.90 per year. PDF Dark asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Proton Pass holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Proton Pass has 9K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 68% of Proton Pass's written reviews are positive against 40% of PDF Dark's.

UpkeepUpdate frequency

Proton Pass ships an update fortnightly, PDF Dark every 11 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Proton Pass versus PDF Dark: the parameters behind the verdict, then further details
ParameterProton PassPDF Dark
PriceFree — better$3.99
Rating4.8 (9K ratings) — better4.0 (2 ratings)
Positive reviews67.6% of reviews — better40.0% of reviews
Number of ratings9K — better2
Update frequencyFortnightly — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size264 MB1 MB
Age rating4++4
DeveloperProton AGJorge Lucioni Charalla

Customer experience

Proton Pass

All ratings8,886 ratings
Positive96.5%
Neutral1.5%
Negative2.0%
Written reviews618 reviews
Positive67.6%
Neutral9.5%
Negative22.8%

PDF Dark

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews5 reviews
Positive40.0%
Neutral40.0%
Negative20.0%

Bugs and requests

Proton Pass

Reported bugs

4 issues
  • Access token issues
  • Freezing and crashing
  • Compatibility problems with certain apps and websites
  • Randomly logging out users

Requested features

8 requests
  • Ability to share passwords with non-Pass users
  • Password strength indicator
  • Passkey login support
  • Easier password generator access
  • More formatting options for notes
Show 3 more
  • Support for storing documents and cards
  • Safari extension
  • Desktop app

PDF Dark

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Proton Pass

Subscriptions2
  • Pass Plus (12 months)$35.901 Year
  • Proton Unlimited 12 months$119.991 Year
None

PDF Dark

No in-app purchases

Questions

Is Proton Pass free?
Proton Pass is free to download, with in-app purchases available.
Is PDF Dark free?
PDF Dark costs $3.99, with no in-app purchases.
Which has better reviews, Proton Pass or PDF Dark?
Proton Pass is rated higher. Proton Pass averages 4.8 out of 5 from 9K ratings, while PDF Dark averages 4.0 from 2 ratings.
Do Proton Pass or PDF Dark have ads?
Neither Proton Pass nor PDF Dark shows ads.
Which is updated more often, Proton Pass or PDF Dark?
Proton Pass ships an update fortnightly, and PDF Dark every 11 months. Most recently, Proton Pass was updated on November 7, 2026 and PDF Dark on November 3, 2026.

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