Comparison

Authenticator App vs PDF Converter・Doc Scanner

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

Head to head
About

Authenticator App

This app generates secure two-factor authentication tokens to protect your online accounts. It offers encrypted cloud backups and multi-device synchronization for easy recovery and access. The app works offline and can be secured with a PIN or biometric lock.

Highlights
  • Secure 2FA token generation
  • Encrypted cloud backups
  • Multi-device synchronization
  • Offline functionality
  • PIN and biometric lock
Features
Read full description

Authenticator App: 2FA・MFA・OTP delivers secure two-factor authentication codes for your accounts, keeping your online services protected with reliable TOTP generation. Simple, fast, and privacy-focused — perfect for securing logins without internet dependency. Key Features: - Generate TOTP codes for your accounts - Easy QR code scanning for quick account setup - Biometric security with Face ID or Touch ID - Secure cloud backup and data recovery - Offline functionality for use anywhere - Minimalist design for instant access Stay protected across all your services with Authenticator App: 2FA・MFA・OTP — your trusted companion for effortless account security. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. Terms of Use & Privacy Policy: https://docs.google.com/document/d/1-bRMtRSuH0pLoMZIwI69CA441mkxM0Cj0xaw91mEhTA/edit?usp=sharing https://docs.google.com/document/d/1-V6vBYQxi7tUSy_X5TVwc6skbLVyXHrjANNyCwFCOHU/edit?usp=sharing

About

PDF Converter・Doc Scanner

Easily scan physical documents and convert various file types, images, and web pages into professional PDF formats. Organize, edit, and share your important content quickly and efficiently.

Highlights
  • Smart document scanning
  • Create PDFs from various sources
  • Convert multiple file types
  • Edit PDFs before saving
  • Instant sharing options
Features
Read full description

Turn paper documents, files, images, text, and web pages into clean PDF documents with just a few taps. Keep your important content organized in a professional format that is easy to store, view, and share whenever you need it. Key Features: - Smart document scanner for receipts, notes, contracts, and more - Create PDF files from documents, photos, text notes, and URLs - Convert different file types into high-quality PDFs with ease - Edit your PDFs before saving - Save your PDFs and share them instantly via email, messages, or other apps Keep your documents scanned, converted, and ready to share in a simple, reliable way designed for everyday use. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. For more information, use the Apple support links: - https://support.apple.com/en-us/HT202039 - https://support.apple.com/en-us/HT204084 Terms of Use & Privacy Policy: https://1drv.ms/w/s!AsI0JlFDFGbMa-dnTkFzZS322_4?e=Q6s1GY https://1drv.ms/w/s!AsI0JlFDFGbMbMDlR6oBo8dpvgc?e=BVjGMJ

Screenshots

Authenticator App4 screens
PDF Converter・Doc Scanner4 screens

Verdict

The call

The clearest difference is update cadence: PDF Converter・Doc Scanner at every 2 months against Authenticator App's every 8 months. Authenticator App's advantage is ratings volume (210 vs 28). On price, rating, ads 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. Authenticator App sells 15 in-app purchases, starting at $4.99 per 7 days and PDF Converter・Doc Scanner sells 4 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 — 4.3 for Authenticator App against 4.3 for PDF Converter・Doc Scanner. That said, the two scores are not equally well evidenced: Authenticator App has 210 ratings behind it against 28, so its average is the more settled of the two.

UpkeepUpdate frequency

Authenticator App ships an update every 8 months, PDF Converter・Doc Scanner every 2 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Authenticator App versus PDF Converter・Doc Scanner: the parameters behind the verdict, then further details
ParameterAuthenticator AppPDF Converter・Doc Scanner
PriceFreeFree
Rating4.3 (210 ratings) — better4.3 (28 ratings)
Positive reviews66.7% of reviews—
Number of ratings210 — better28
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS17 — better18
Further details — not scored
Size48 MB83 MB
Age rating4+4+
DeveloperAuthentication ServicesNikolai Ivanenko

Customer experience

Authenticator App

All ratings210 ratings
Positive81.9%
Neutral5.7%
Negative12.4%
Written reviews12 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

PDF Converter・Doc Scanner

All ratings25 ratings
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

15 purchases

Authenticator App

Subscriptions15
  • Digital Security Authenticator3 Days trial$4.997 Days
  • Enhance online security3 Days trial$5.997 Days
  • Generate one-time passwords$5.997 Days
Show 12 more
  • Smart Authenticator3 Days trial$6.997 Days
  • One-Time Password Generator$7.997 Days
  • Secure Code Generator3 Days trial$7.997 Days
  • One-Time Security Code App3 Days trial$9.997 Days
  • Smart Code Authenticator3 Days trial$11.997 Days
  • 2FA App$14.991 Month
  • Secure Verification Generator3 Days trial$19.991 Month
  • Secure your accounts$19.991 Month
  • Account protection Authenticator3 Days trial$29.991 Month
  • Secure your accounts$39.991 Year
  • Safe Login Code Generator3 Days trial$49.991 Year
  • One-Time Password$59.991 Year
4 purchases

PDF Converter・Doc Scanner

Subscriptions4
  • Convert to PDF Docs & Pictures$6.997 Days
  • Convert to PDF Docs & Pictures3 Days trial$6.997 Days
  • Image & Photo to PDF・Converter$19.991 Month
Show 1 more
  • Image & Photo to PDF・Converter$39.991 Year

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is PDF Converter・Doc Scanner free?
PDF Converter・Doc Scanner is free to download, with in-app purchases available.
Which has better reviews, Authenticator App or PDF Converter・Doc Scanner?
Authenticator App is rated higher. Authenticator App averages 4.3 out of 5 from 210 ratings, while PDF Converter・Doc Scanner averages 4.3 from 28 ratings.
Do Authenticator App or PDF Converter・Doc Scanner have ads?
Neither Authenticator App nor PDF Converter・Doc Scanner shows ads.
Which is updated more often, Authenticator App or PDF Converter・Doc Scanner?
Authenticator App ships an update every 8 months, and PDF Converter・Doc Scanner every 2 months. Most recently, Authenticator App was updated on October 19, 2026 and PDF Converter・Doc Scanner on October 7, 2026.

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