Comparison

PDFSlimmer vs Authenticator App

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

Head to head
About

PDFSlimmer

Features
Read full description

PDFSlimmer makes your PDFs small, fast, and easy to share. Whether you’re sending documents, forms, school papers, or work files β€” PDFSlimmer instantly reduces file size without losing quality. Built for speed, privacy, and simplicity. No accounts. No uploads. Everything happens securely on your device. Why PDFSlimmer? - Instant compression β€” shrink PDFs in seconds - Smart size reduction β€” keeps text sharp and images clear - 100% private β€” nothing leaves your device - Light and clean UI β€” no clutter, no ads - Multiple compressions β€” try different levels until it’s perfect - Easy sharing β€” email, WhatsApp, AirDrop, Drive, and more - Works with any PDF β€” scans, forms, invoices, books, anything Perfect for anyone who needs fast, reliable PDF compression. All on your device Your files stay safely on your iPhone or iPad. Nothing is uploaded to a server. Make your PDFs smaller the smart way.

About

Authenticator App

Features
Read full description

Strengthen your digital security of all of your online accounts with a powerful two-factor authentication solution. Authenticator App – MFA 2FA is designed to protect your online accounts by adding an extra layer of security beyond passwords, helping to prevent unauthorized access and keep your sensitive data safe. Created as a powerful alternative to Google Authenticator & Microsoft Authenticator App, the Authenticator App - MFA / 2FA Auth App provides secure authentication for your Google accounts and any service that supports the TOTP (Time-Based One-Time Password) standards. For protecting personal accounts or managing professional workflows, the Authenticator App offers a secure and private experience. Protect your email accounts, cloud storages, work tools, and social media accounts with a solution designed for reliability, simplicity, and compatibility. Key Features and Benefits - Secure Time-Based 2FA/OTP Codes: Generate dynamic one-time passwords instantly, ensuring fast and secure MFA authentication for all your accounts. - Authenticator for Google Accounts: Protect Google services and other platforms like Office 365, Outlook, Azure, Teams, and any Google-compatible service using standard TOTP authentication. A trusted alternative to Google Authenticator for users seeking flexibility and simplicity. - Broad Compatibility: Works with hundreds of services including Google, Microsoft, Facebook, Instagram, Twitter, Amazon, Dropbox, GitHub, and more β€” any platform that supports TOTP-based two-factor authentication or MFA. - QR Code Scanner: Add accounts instantly by scanning QR codes or configuring manually. Designed for both beginners and advanced users. - Biometric Lock: Protect your authenticator app with Face ID or fingerprint recognition. Your 2FA codes stay private and secure. - Backup & Restore: Never lose your accounts. Export and import your 2FA accounts securely and restore them anytime. - One-Tap Copy: Copy your OTP codes instantly with a single tap for fast and smooth authentication. - Offline Access: Access your 2FA authentication codes anytime, even without an internet connection. Stay in control wherever you are. - Privacy First: All data is stored locally on your device. No accounts, no cloud sync, no data collection β€” your security stays in your hands. Premium Features - Unlimited 2FA accounts - Biometric lock protection - Backup & restore - Subscription options: Weekly ($1.49 intro, then $9.99/week) or Yearly (7-day free trial, then $49.99/year). Payment will be charged to your Apple ID account. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period Supported Services Works with all services supporting TOTP 2FA and MFA including Google, Microsoft, Facebook, Instagram, Twitter (X), Amazon, Dropbox, GitHub, and thousands more. Take control of your account security with a modern and reliable two-factor authentication solution. Download Authenticator App – MFA 2FA today and protect your Google and online accounts with complete confidence. Privacy Policy: https://tgsmobileapps.github.io/privacy-policy.html Terms of Service: https://tgsmobileapps.github.io/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact Us Have questions or feedback? We'd love to hear from you. Email: tgsmobileapps@gmail.com

Screenshots

PDFSlimmer4 screens
Authenticator App4 screens

Verdict

The call

The clearest difference is device support: Authenticator App at 3 against PDFSlimmer's 1. Authenticator App also leads on iOS requirement (13.0 vs 26.0). On price, ads and in-app purchases 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

Both are free to download. PDFSlimmer sells 1 one-off in-app purchase and Authenticator App sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Β· 4 level
PDFSlimmer versus Authenticator App: the parameters behind the verdict, then further details
ParameterPDFSlimmerAuthenticator App
PriceFreeFree
Update frequencyβ€”Weekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod β€” better
Requires iOS26.013.0 β€” better
Further details β€” not scored
Size1 MB50 MB
Age rating4+4+
DeveloperAndrei IsacSelcuk Gedikkaya

In-app purchases

1 purchases

PDFSlimmer

One-time1
  • PDFSlimmer PRO$2.99
4 purchases

Authenticator App

Subscriptions4
  • Authenticator App Weekly Premium3 Days trial$7.997 Days
  • Authenticator App Weekly Premium7 Days trial2 variants$9.997 Days
  • Authenticator App Yearly Premium7 Days trial$39.991 Year
Show 1 more
  • Authenticator App Yearly Premium$49.991 Year

Questions

Is PDFSlimmer free?
PDFSlimmer is free to download, with in-app purchases available.
Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Do PDFSlimmer or Authenticator App have ads?
Neither PDFSlimmer nor Authenticator App shows ads.

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