Comparison

PDF Encrypt Assisant vs CellArc

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

Head to head
About

PDF Encrypt Assisant

Features
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PDF files often contain important information such as contracts, invoices, resumes, or study materials. PDF Encryption Assistant is designed to protect your PDF files simply, quickly, and securely. It supports both single file and batch encryption, adding an extra layer of protection for your privacy. Key Features First, Single and Batch File Encryption. Select one or multiple PDF files and add password protection with one tap. Batch processing is completed in one go, and encrypted files are automatically generated as new PDF files without affecting the original files. Second, Show or Hide Password While Typing. Tap the eye icon while entering your password to show or hide the characters. This helps you confirm that you have typed the password correctly, avoiding the situation where you cannot open the file after encryption due to a typing mistake. Third, Safe Storage of Original Files. The newly encrypted files coexist with the original files. You can choose whether to keep the original unencrypted files. Fourth, Simple and Streamlined Workflow. No account registration required, no internet connection needed. All operations are performed entirely on your device. The app does not collect any file content or upload anything to any server. Fifth, Suitable for Multiple Scenarios. Including work documents such as contracts and quotes, study materials such as papers and exam answers, personal files such as ID scans and bank statements, and family sharing such as budgets and itineraries. Privacy and Security Statement All operations are completed solely on your iOS device. Files are never uploaded to any server. This app does not record your passwords, does not use any tracking or analytics tools, and only requests necessary file reading and saving permissions. Who This App Is For Professionals who want to protect work documents from being viewed without permission, teachers and students who want to encrypt study materials and answer keys, people who frequently handle contracts or financial documents, and anyone who values information security and wants an easy way to encrypt PDF files. Why Choose This App A simple PDF encryption tool that truly supports batch encryption rather than just changing file extensions. It also allows you to show or hide your password while typing. The interface is clean and beginner-friendly. Encryption is just three steps away: select files, enter a password, and start encrypting. Notes Encrypted PDFs can be opened with common PDF readers such as Adobe Acrobat or the system's built-in Preview by entering the password. Please remember your password, as this app cannot and will not recover it for you. β€” Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CellArc

Features
Read full description

CellArc turns your iPhone's battery into something you can understand and plan around β€” on device, with no account, no ads and no subscription. NEW IN 4.0 β€’ Battery Health Log β€” iOS shows Maximum Capacity only as today's number. Log it from Settings > Battery > Battery Health (plus the cycle count on iPhone 15 and later) and CellArc fits a trend from your own readings: loss per year, cycles per month, loss per 100 cycles and a projected date for reaching 80%. β€’ Siri & Shortcuts β€” "Battery Outlook" summarizes your level, today's recorded discharge and latest Maximum Capacity. "Log Battery Level" records a sample even while CellArc is closed; add it to a Shortcuts automation such as "When iPhone is connected to power". "Log Maximum Capacity" adds a health reading by voice. β€’ Full backup & restore β€” one JSON file with your samples, charging sessions, daily rollups, health log and routine trials. Restoring only adds missing records; it never deletes or overwrites. β€’ Redesigned navigation β€” the system tab bar with five clear destinations, and every Power Lab tool opens with a real back button. Higher-contrast text, Dynamic Type support and a calmer iPad layout. WHAT CELLARC DOES β€’ Dashboard with live level, Battery Action Plan and a 7-day longevity trend β€’ Live Forecast: time to full and time to empty from recent movement β€’ Charging sessions with time to 80%, peak thermal state and charge-speed trend β€’ Longevity score, 20–80% band coach, drain analysis, usage rhythm and heat exposure β€’ Scenario Studio and Routine Trials to test a changed habit against your own data β€’ Trip Planner with power-bank sizing, Best Time to Charge, Storage Mode reminders and Lifetime Energy β€’ Offline Charger Guide and a 23-topic Battery Field Guide with Apple sources β€’ CSV, text and PDF reports HONEST ABOUT iOS LIMITS iOS does not let apps read Maximum Capacity, cycle count, temperature or per-app power. CellArc samples the public battery level and thermal state while it is open (or when your shortcut runs), labels estimates as estimates, and uses the readings you enter for health trends. It is not a diagnostic or service tool. Everything included β€” one purchase, no subscription. iPhone and iPad.

Screenshots

PDF Encrypt Assisant3 screens
CellArc4 screens

Verdict

The call

The clearest difference is price: CellArc at $1.99 against PDF Encrypt Assisant's $9.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

PDF Encrypt Assisant costs $9.99 and CellArc $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Β· 5 level
PDF Encrypt Assisant versus CellArc: the parameters behind the verdict, then further details
ParameterPDF Encrypt AssisantCellArc
Price$9.99$1.99 β€” better
Update frequencyβ€”Every 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 β€” better17.0
Further details β€” not scored
Size6 MB7 MB
Age rating4+4+
Developer乐η₯₯ 胑Robert Corbin

In-app purchases

None

PDF Encrypt Assisant

No in-app purchases

None

CellArc

No in-app purchases

Questions

Is PDF Encrypt Assisant free?
PDF Encrypt Assisant costs $9.99, with no in-app purchases.
Is CellArc free?
CellArc costs $1.99, with no in-app purchases.
Do PDF Encrypt Assisant or CellArc have ads?
Neither PDF Encrypt Assisant nor CellArc shows ads.

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