Comparison

Authenticator App vs SmartPDF

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 provides secure and effortless two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backup, cloud sync, and QR code integration for easy setup and cross-device access, serving as a reliable alternative to other authenticator apps.

Highlights
  • Secure 2FA/MFA code generation
  • Encrypted backup and cloud sync
  • QR code integration for easy setup
  • Cross-device compatibility
  • Fast and consistent performance
Features
Read full description

Authenticator is an advanced authentication app built to provide secure and effortless two-factor authentication (2FA) and multi-factor authentication (MFA) for your online accounts. It enhances your digital security by generating time-based one-time passwords (TOTP) and OTP codes for any platform that supports 2FA. Designed as a reliable alternative to Google Authenticator, this app ensures strong protection for your personal and professional accounts. Whether you’re securing email, managing social media logins, accessing cryptocurrency exchanges, or logging into work platforms that require two-factor authentication, Authenticator keeps your credentials safe and easily accessible. It supports popular services like Google, Facebook, Instagram, Microsoft, Binance, and many others. Key Features: Secure Authentication: Create and manage your 2FA and TOTP codes compatible with thousands of online platforms. Fast and Consistent Performance: Quickly retrieve authentication codes, even when switching between multiple accounts. Encrypted Backup & Cloud Sync: Protect your auth data with end-to-end encryption and synchronize it seamlessly across all your iOS devices. QR Code Integration: Add new authenticator entries instantly by scanning QR codes with your device’s camera. Cross-Device Compatibility: Enjoy full synchronization and access to your MFA and TOTP codes on multiple devices. Download Authenticator now to strengthen your online security with simple, reliable, and powerful multi-factor authentication (MFA). Your trusted all-in-one auth solution — fast, secure, and always in sync. https://www.sanmobile.co/terms.html https://www.sanmobile.co/privacy.html

About

SmartPDF

Features
Read full description

SmartPDF — PDF Toolkit Pro is your complete PDF toolkit for iPhone. Scan, read, organize, edit, sign, and protect documents in one fast and clean workflow. 12 powerful PDF tools • Image to PDF • Word to PDF • Merge PDF • Split PDF • Compress PDF • Page Manager • OCR Extract • Annotate • Sign PDF • Watermark • Redact Text • Password Protect Scan, Read & Create • Scan documents with your camera • Import images and turn them into PDFs • Open PDFs in a built-in reader • Search text inside documents • Browse pages with thumbnails • Save bookmarks and continue where you left off Premium • 7-day free trial for premium features • One-time purchase after trial, no subscription • Restore purchases on devices using the same Apple ID SmartPDF helps you stay productive wherever you are — whether you need to scan paperwork, sign a contract, extract text with OCR, or protect sensitive files.

Screenshots

Authenticator App4 screens
SmartPDF4 screens

Verdict

The call

The clearest difference is ads: SmartPDF at none against Authenticator App's shown. On price, update cadence, in-app purchases and device support 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 8 in-app purchases, starting at $0.99 per 7 days and SmartPDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Authenticator App ships an update weekly, SmartPDF every 5 days. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

Scorecard1 real difference · 9 level
Authenticator App versus SmartPDF: the parameters behind the verdict, then further details
ParameterAuthenticator AppSmartPDF
PriceFreeFree
Rating4.5 (86 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings86 — better—
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size58 MB3 MB
Age rating4+4+
DeveloperSAN MOBILESergino Elisha A.

In-app purchases

8 purchases

Authenticator App

Subscriptions8
  • Authenticator 2FA Weekly Basic3 Days trial$0.997 Days
  • Autenticador 2FA Weekly Pre3 Days trial$7.997 Days
  • Authentication 2FA Weekly Plus3 Days trial$8.997 Days
Show 5 more
  • FreeOTP Authenticator Weekly Pro3 Days trial$9.997 Days
  • MFA Authenticator Monthly Basic$29.991 Month
  • Yearly Pre Subscription$39.991 Year
  • Yearly Plus Subscription$49.991 Year
  • Yearly Pro Subscription$59.991 Year
1 purchases

SmartPDF

One-time1
  • SmartPDF Premium$4.99

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is SmartPDF free?
SmartPDF is free to download, with in-app purchases available.
Do Authenticator App or SmartPDF have ads?
Authenticator App shows ads; SmartPDF does not.
Which is updated more often, Authenticator App or SmartPDF?
Authenticator App ships an update weekly, and SmartPDF every 5 days. Most recently, Authenticator App was updated on September 26, 2026 and SmartPDF on September 21, 2026.

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