Comparison

PDF Converter & PDF Scanner vs Authenticator

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

Head to head
About

PDF Converter & PDF Scanner

This app acts as a portable PDF assistant, allowing users to scan, edit, and convert documents and photos into PDF format. It offers high-quality scanning, smart OCR for text recognition, and versatile editing tools. Convert PDFs to various formats and secure your files with encryption.

Highlights
  • High-quality scanning
  • Smart OCR text recognition
  • All-in-one PDF editing
  • Format conversion (Word, Excel, images)
  • Secure file encryption
  • Add text, images, annotations, signatures
Features
Read full description

Your portable PDF assistant: easily scan,Clean-scan ,edit and convert! This is an intuitive and powerful PDF tool that allows you to effortlessly handle PDFs and enjoy a convenient experience. Whether you're scanning photos or paper documents, editing PDF content, or converting file formats, it's all made easy. Key Features: -High-Quality Scanning: Easily scan paper documents using your phone's camera to generate high-definition PDF files, with support for automatic cropping and image enhancement. -Smart OCR: Equipped with a powerful OCR text recognition engine, it can convert text in scanned documents into editable text, allowing you to copy, edit, translate, and more. -All-in-One Editing: Supports a variety of editing operations on PDF files, including adding text, images, annotations, signatures, watermarks, and more, meeting all your needs. -Format Conversion: Converts PDF files into various formats such as Word, Excel, and images, making it easy for further editing and sharing. -Secure Encryption: Utilizes advanced encryption technology to protect your PDF files and prevent information leaks. Whether you're a student, business professional, designer, or everyday user, you can efficiently handle PDF documents, easily edit PDF materials, and enjoy a convenient digital life. Download now to experience efficient and convenient PDF processing! About Subscription: Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be automatically invalidated when the user purchases the applicable subscription. Privacy Policy: https://sites.google.com/view/pdfpp/home Terms of Use: https://sites.google.com/view/pdftou/home

About

Authenticator

This app provides free two-factor and multi-factor authentication for your online accounts. It also offers a password manager with autofill, encrypted backups, and a built-in VPN for enhanced digital security.

Highlights
  • Two-Factor Authentication (2FA)
  • Password Manager with Autofill
  • Encrypted Backups
  • Cross-Device Sync
  • Offline Access
  • Built-In VPN Protection
Features
Read full description

The App is your go-to, free solution for managing two-factor (2FA) and multi-factor (MFA) authentication on your iPhone and iPad. Safeguard your online accounts—like Facebook, Google, Instagram, Microsoft, Roblox, and thousands more—using secure 2FA codes. Whether securing emails, social media profiles, or financial accounts, KeyGuard provides reliable and free two-factor authentication. Download it today on your iPhone or iPad to take control of your online security! Why? Goes beyond just two-step verification. It’s a comprehensive solution for managing 2FA codes, passwords, and overall digital security. Whether you’re in need of an authenticator app, a password manager with autofill, or even a built-in VPN, KeyGuard offers unmatched convenience and security. Key Features: Two-Factor Authentication (2FA): Safeguard your accounts with time-based codes (OTP, TOTP). Works perfectly with Google, Facebook, Microsoft, Instagram, and more. Password Manager with Autofill: Safely store, organize, and autofill your passwords. Effortlessly generate strong, unique passwords. Encrypted Backups: Keep your 2FA codes and passwords secure with end-to-end encrypted iCloud backups. Cross-Device Sync: Access your 2FA codes and passwords across your iPhone, iPad, and other Apple devices in real-time. Offline Access: Generate 2FA codes without an internet connection, ensuring continuous protection. Advanced Security Options: Lock the app with Touch ID, Face ID, or a secure PIN for extra security, ensuring only you can access your data. Built-In VPN Protection: Secure your online connection and browse safely with an integrated VPN. Getting Started is Simple: Log in to the account you wish to secure (e.g., Google, Facebook, Amazon). Go to the account's security settings and enable Two-Factor Authentication (2FA). Choose the "Authentication App" option. Scan the QR code with the KeyGuard App. Enter the generated code to confirm the setup. Enable encrypted backups for extra peace of mind. Your Data, Fully Secured App ensures your sensitive data is safe with end-to-end encryption, making sure that only you can access it—whether it’s stored on the cloud or offline. With secure backups, offline access, and seamless device syncing, keeping your data safe has never been easier. Compatible with Thousands of Services Protect your favorite accounts, including Gmail, Discord, Reddit, Twitch, PlayStation, Binance, Coinbase, Shopify, Salesforce, PayPal, LinkedIn, and many others. Download KeyGuard Authenticator App Today! Take charge of your online security now. With features like password management, a VPN, and encrypted backups, KeyGuard is the ultimate tool for safeguarding your accounts. Subscription Details Unlock premium features such as unlimited tokens, advanced password management, and enhanced VPN protection. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage your subscriptions in the App Store settings. To protect your security and deter refund fraud, we provide Apple with anonymized data about how the app is used. Our full refund policy is explained in our Privacy Policy and Terms of Use. Contact us: bedirhank11@outlook.com Privacy Policy: https://docs.google.com/document/d/1oRxdygmPYDMLOA9lrU9tyxd9XrmEhIdB3zp2awBmmOY/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1vo6uJR2_pkKJg_zJ8p7Vz4oMJYyI0FEHo2aSS-il00c/edit?usp=sharing

Screenshots

PDF Converter & PDF Scanner4 screens
Authenticator4 screens

Verdict

The call

The clearest difference is ads: Authenticator at none against PDF Converter & PDF Scanner's shown. Authenticator also leads on update cadence (every 4 days vs every 8 days). PDF Converter & PDF Scanner's advantage is ratings volume (91 vs 8) and iOS requirement (14.0 vs 16). On price, rating, in-app purchases and monetization model 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. PDF Converter & PDF Scanner sells 3 in-app purchases, starting at $4.99 per 7 days and Authenticator sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for PDF Converter & PDF Scanner against 4.5 for Authenticator. That said, the two scores are not equally well evidenced: PDF Converter & PDF Scanner has 91 ratings behind it against 8, so its average is the more settled of the two.

UpkeepUpdate frequency

PDF Converter & PDF Scanner ships an update every 8 days, Authenticator every 4 days. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Converter & PDF Scanner versus Authenticator: the parameters behind the verdict, then further details
ParameterPDF Converter & PDF ScannerAuthenticator
PriceFreeFree
Rating4.6 (91 ratings) — better4.5 (8 ratings)
Positive reviews97.9% of reviews—
Number of ratings91 — better8
Update frequencyEvery 8 daysEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.0 — better16
Further details — not scored
Size42 MB11 MB
Age rating17+4+
Developer家俊 张Crossing Pub

Customer experience

PDF Converter & PDF Scanner

All ratings91 ratings
Positive90.1%
Neutral1.1%
Negative8.8%
Written reviews48 reviews
Positive97.9%
Neutral0.0%
Negative2.1%

Authenticator

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

3 purchases

PDF Converter & PDF Scanner

Subscriptions3
  • 1 week7 Days trial$4.997 Days
  • 1 month1 Month trial$16.991 Month
  • 1 year$39.991 Year
3 purchases

Authenticator

Subscriptions2
  • Weekly Trial Subscription3 Days trial$6.997 Days
  • Weekly Subscription$6.997 Days
One-time1
  • Premium$3.99

Questions

Is PDF Converter & PDF Scanner free?
PDF Converter & PDF Scanner is free to download, with in-app purchases available.
Is Authenticator free?
Authenticator is free to download, with in-app purchases available.
Which has better reviews, PDF Converter & PDF Scanner or Authenticator?
PDF Converter & PDF Scanner is rated higher. PDF Converter & PDF Scanner averages 4.6 out of 5 from 91 ratings, while Authenticator averages 4.5 from 8 ratings.
Do PDF Converter & PDF Scanner or Authenticator have ads?
PDF Converter & PDF Scanner shows ads; Authenticator does not.
Which is updated more often, PDF Converter & PDF Scanner or Authenticator?
PDF Converter & PDF Scanner ships an update every 8 days, and Authenticator every 4 days. Most recently, PDF Converter & PDF Scanner was updated on October 12, 2026 and Authenticator on October 17, 2026.

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