Comparison

Control Mark vs PDF Locker

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

Head to head
About

Control Mark

Create quick access shortcuts to your favorite websites. Add any webpage and place these shortcuts on your lockscreen, as action buttons, or as Control Center widgets for instant access.

Highlights
  • Add any webpage as a shortcut
  • Share sheet extension for easy adding
  • Customizable shortcut symbols
  • Lockscreen quick actions
  • Control Center widget integration
  • Action Button support
Features
Read full description

Control Mark lets you create quick access shortcuts to your favorite websites. Add any website in the Control Mark or while browsing using the Add Page to Control Mark action. You can then place your favorite websites on your lockscreen as quick action button, as action for the Action Button, or as Control Center Widget. Features: - Add any webpage as Control Mark - Action Extension for the Share sheet to add a Control Mark directly from the browser - Choose an individual symbol for the Control Mark - Add Control Marks to your lockscreen as quick action, to the Control Center, or the Action Button

About

PDF Locker

Features
Read full description

PDF WOLF lets you add password protection to any PDF, directly on your device. No cloud uploads. No accounts. No servers involved. Your files stay private from start to finish. HOW IT WORKS Import any PDF from Files, iCloud Drive, or any app on your device. Choose to generate a cryptographically strong random password automatically, or enter your own. PDF WOLF applies industry-standard PDF encryption on-device, then verifies the result before presenting it to you. Once protection is complete, you can preview the result. Saving the protected PDF to Files or sharing it directly requires a Pro plan. WHAT YOU GET — Import any PDF from Files or iCloud Drive — Generate a strong random password with one tap — Enter and confirm your own password manually — On-device encryption — your PDF never leaves your iPhone or iPad — Verification step confirms encryption worked before you save — Password vault: all passwords stored securely in your device's Keychain — Reveal, copy, or reference any saved password from the Passwords tab — Protection history with thumbnail previews of past protected files — Save protected PDFs directly to Files (Pro) — Share protected PDFs via AirDrop, Mail, Messages and more (Pro) PRIVACY FIRST PDF WOLF uses no analytics, no tracking, and no advertising SDKs. It communicates only with Apple's App Store to process purchases. Everything else happens entirely on your device. PRO PLAN A Pro plan (Weekly or Lifetime) unlocks the ability to save protected PDFs to the Files app and share them via the iOS share sheet. The protection process itself can be experienced before purchasing — Pro gates only the final file delivery. Passwords are stored in your device's Keychain, the same secure storage used by banks and password managers. PDF WOLF never sees or stores your passwords on any server. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://1kbapps.com/pdfwolf/

Screenshots

Control Mark3 screens
PDF Locker4 screens

Verdict

The call

The clearest difference is price: PDF Locker at Free against Control Mark's $0.99. Control Mark's advantage is in-app purchases (none vs 3). On update cadence, 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

PDF Locker is free to download; Control Mark costs $0.99 up front. PDF Locker sells 3 in-app purchases, starting at $4.99 per 7 days. Control Mark asks for nothing beyond the download.

UpkeepUpdate frequency

Control Mark ships an update every 3 months, PDF Locker every 5 months. The most recent releases landed on September 22, 2026 and August 25, 2026 respectively.

Scorecard2 real differences · 8 level
Control Mark versus PDF Locker: the parameters behind the verdict, then further details
ParameterControl MarkPDF Locker
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size14 MB3 MB
Age rating4+4+
DeveloperArno AppenzellerVikram Singh

In-app purchases

None

Control Mark

No in-app purchases

3 purchases

PDF Locker

Subscriptions2
  • Mobile Pro Access Weekly$4.997 Days
  • Mobile Pro Access Yearly$19.991 Year
One-time1
  • Pro Lifetime Unlock$19.99

Questions

Is Control Mark free?
Control Mark costs $0.99, with no in-app purchases.
Is PDF Locker free?
PDF Locker is free to download, with in-app purchases available.
Do Control Mark or PDF Locker have ads?
Neither Control Mark nor PDF Locker shows ads.
Which is updated more often, Control Mark or PDF Locker?
Control Mark ships an update every 3 months, and PDF Locker every 5 months. Most recently, Control Mark was updated on September 22, 2026 and PDF Locker on August 25, 2026.

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