Comparison

PDF Password vs AIUM

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

Head to head
About

PDF Password

Secure your PDF documents by adding or removing password protection directly on your device. This app allows you to encrypt files with AES-256 protection or remove existing passwords when the current one is known. All processing happens locally for enhanced privacy.

Highlights
  • Add AES-256 password protection
  • Remove known PDF passwords
  • Process multiple files
  • On-device processing
  • Cancel processing option
  • Preview unlocked files
Features
Read full description

Manage PDF passwords directly on your device. Remove an open password when you know the current password, or add AES-256 password protection to a PDF that is not protected yet. REMOVE A KNOWN PDF PASSWORD Select a protected PDF, enter its current password and create an unlocked copy. Keep a convenient copy of documents you are authorized to use. This app does not guess, crack or recover forgotten passwords. PROTECT A PDF WITH A PASSWORD Set a new open password and confirm it before processing. The app creates a separate encrypted PDF copy; your original file is not overwritten. MULTIPLE FILES, CLEAR RESULTS Choose one or several PDFs, process them in order and review the result for each file. Save successful copies, share them with another app or open a preview. You can cancel processing. ON-DEVICE PDF PROCESSING PDF contents and passwords are processed locally, without uploading your documents to a server. Useful for contracts, certificates and everyday work documents. PLEASE NOTE • The current password is required to unlock a protected PDF. • Keep new passwords safe; forgotten passwords cannot be recovered. • Digitally signed documents are not converted, to help preserve their signatures. • Processing is subject to the displayed daily allowance and rewarded credits. Rewarded ads may provide additional credits. • Advertising and optional usage statistics or diagnostics may use a network connection. Manage collection choices in Settings. Support: appsupport@bokeriastudio.com

About

AIUM

Features
Read full description

AIUM (AI Usage Monitor) is an iOS app for viewing your GitHub Copilot and OpenAI Codex usage in one place. Check your usage, limits, remaining quota, and estimated reset times in the app or through Home Screen and Lock Screen widgets. Key Features • View GitHub Copilot usage • View OpenAI Codex usage • Check usage, limits, remaining quota, and reset times • Home Screen widgets • Lock Screen widgets • Manually adjust displayed usage limits • Manage the sign-in status of each service Data Handling Authentication credentials are stored securely in the iOS Keychain. Usage data and app settings are stored on your device. Data used by widgets is stored in the app's local App Group container. AIUM does not send your data to a developer-operated backend or sync it with a developer-operated cloud service. Important Notes • Usage information is an estimate based on data provided by each service. For official billing, subscription, and remaining quota information, check the official account pages of each service. • Available usage information may vary depending on your account type, subscription plan, and service availability. • OpenAI Codex usage access may stop working if the service changes. • Widget refresh timing is controlled by iOS and is not guaranteed to be real time. • AIUM is an independent, unofficial app. It is not affiliated with, endorsed by, or sponsored by GitHub or OpenAI.

Screenshots

PDF Password4 screens
AIUM2 screens

Verdict

The call

The clearest difference is ads: AIUM at none against PDF Password's shown. PDF Password's advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PDF Password ships an update every 3 weeks, AIUM every 2 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Password versus AIUM: the parameters behind the verdict, then further details
ParameterPDF PasswordAIUM
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size14 MB2 MB
Age rating4+4+
DeveloperBokeriaHitoshi Kanetani

In-app purchases

None

PDF Password

No in-app purchases

None

AIUM

No in-app purchases

Questions

Is PDF Password free?
PDF Password is free to download, with no in-app purchases.
Is AIUM free?
AIUM is free to download, with no in-app purchases.
Do PDF Password or AIUM have ads?
PDF Password shows ads; AIUM does not.
Which is updated more often, PDF Password or AIUM?
PDF Password ships an update every 3 weeks, and AIUM every 2 months. Most recently, PDF Password was updated on November 11, 2026 and AIUM on November 5, 2026.

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