Comparison

PDF Secure vs Complication Compilation

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

Head to head
About

PDF Secure

Secure your PDF documents by adding password protection, ensuring they cannot be opened without authorization. You can also easily remove existing password protection from your files. This app offers a straightforward process for safeguarding your sensitive information.

Highlights
  • Password protect PDF documents
  • Remove PDF password protection
  • Cross-platform compatibility
  • Export to various locations
  • Dark mode support
Read full description

Protect your PDF documents with a password. The PDF won't open without the password. It works on any platform. PDF Secure also allows you to completely remove the password protection of a document. Using PDF Secure is very simple: • Select a PDF document from your files • Choose a password (ideally strong) and do not forget it • Export anywhere (Files app, any cloud drive, E-mail, AirDrop, Messages, ...) → The password will now be requested at any attempt to open the PDF (on all platforms) PDF Secure is compatible with the dark mode. And it's 100% free (no in-app purchases, no ads). NO DATA COLLECTION. Everything happens on device. Your privacy matters. Enjoy!

About

Complication Compilation

Features
Read full description

Launch with the Daily Steps complication and track progress right on your wrist. Our watchOS experience will continuously expand with new complications—share your ideas so the next one can be yours. - Quickly set or adjust your daily goal inside the app - Accurate HealthKit data refreshed in the background - Clear watchOS complication for at-a-glance tracking - Roadmap packed with additional complications; requests encouraged - Privacy-first: your health data stays under your control Requires an Apple Watch running watchOS 10 or later and HealthKit access to ‘Steps.’

Screenshots

PDF Secure4 screens

Verdict

The call

The clearest difference is price: PDF Secure at Free against Complication Compilation's $0.99. PDF Secure also leads on iOS requirement (13.0 vs 15.6). Complication Compilation's advantage is update cadence (every 2 months vs every 9 months). On ads, in-app purchases 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

PDF Secure is free to download; Complication Compilation costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PDF Secure ships an update every 9 months, Complication Compilation every 2 months. The most recent releases landed on October 11, 2026 and September 27, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Secure versus Complication Compilation: the parameters behind the verdict, then further details
ParameterPDF SecureComplication Compilation
PriceFree — better$0.99
Rating4.9 (376 ratings) — better—
Positive reviews98.8% of reviews—
Number of ratings376 — better—
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS13.0 — better15.6
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperiSolid appsLeon Wolf

In-app purchases

None

PDF Secure

No in-app purchases

None

Complication Compilation

No in-app purchases

Questions

Is PDF Secure free?
PDF Secure is free to download, with no in-app purchases.
Is Complication Compilation free?
Complication Compilation costs $0.99, with no in-app purchases.
Do PDF Secure or Complication Compilation have ads?
Neither PDF Secure nor Complication Compilation shows ads.
Which is updated more often, PDF Secure or Complication Compilation?
PDF Secure ships an update every 9 months, and Complication Compilation every 2 months. Most recently, PDF Secure was updated on October 11, 2026 and Complication Compilation on September 27, 2026.

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