Comparison

4Lexile vs Authenticator App

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

Head to head
About

4Lexile

Scan book ISBNs to quickly discover their Lexile levels. This utility helps users identify appropriate reading materials based on reading proficiency.

Highlights
  • Scan book ISBNs
  • Find Lexile levels
  • Identify reading materials
Features
Read full description

4Lexile is a tool for scan books ISBN and find the books lexile levels.

About

Authenticator App

Secure your online accounts with two-factor and multi-factor authentication. Generates time-based one-time passwords (TOTP) and OTP codes for fast, reliable logins. Includes a built-in password manager and encrypted backup for all your credentials.

Highlights
  • Two-factor authentication (2FA)
  • Multi-factor authentication (MFA)
  • Time-based one-time passwords (TOTP)
  • Built-in password manager
  • Encrypted backup and sync
  • Import from other authenticator apps
  • Offline code generation
Features
Read full description

Authenticator App – Secure Accounts and Passwords Protect your online accounts with secure two-factor authentication (2FA) and multi-factor authentication (MFA) using this powerful authenticator app. Authenticator App generates time-based one-time passwords (TOTP) and OTP codes for safe, fast, and reliable logins, adding a strong layer of protection beyond passwords. Access your authentication codes anytime, even without an internet connection. All TOTP codes and OTP verification codes are generated directly on your device, ensuring fast, private, and secure sign-ins without relying on SMS. Easily manage your 2FA codes, MFA accounts, passwords, and login credentials in one place with a simple and user-friendly authenticator experience. Secure & Private All your data in this authenticator app is encrypted locally and in iCloud, ensuring only you can access it. Our end-to-end encryption protects your authentication codes, TOTP secrets, OTP tokens, and passwords, keeping your accounts secure at all times. Built-in Password Manager Authenticator App is more than just a 2FA authenticator. Store and manage all your passwords with a secure password manager. Keep your login credentials safe, organized, and protected while using your authenticator for daily access. Secure TOTP & Offline Access Generate TOTP codes, OTP verification codes, and 2FA authentication tokens for secure logins across thousands of platforms. Your authenticator app works even without internet access, ensuring uninterrupted MFA authentication anytime. 2FA Encrypted Backup & Sync Automatically back up your 2FA codes, TOTP accounts, and passwords securely to iCloud. Sync your authenticator data across iPhone, iPad, and devices, and restore access anytime. Import From Other Apps Switch easily from Google Authenticator or Microsoft Authenticator: Import via QR code Upload using CSV Add accounts manually Manage all your 2FA, MFA, and TOTP accounts in one secure authenticator app. Export Anytime Export all your authentication codes, TOTP entries, and 2FA accounts via QR code or CSV. Your data stays in your control. Quick Access with Widget Access your OTP codes, authentication tokens, and 2FA codes instantly from your Home Screen using the widget for faster login. Apple Watch Support View your authentication codes, OTP tokens, and TOTP entries directly on your Apple Watch for seamless access. Organize with Folders Create folders to manage your authentication accounts, passwords, and login data easily with drag-and-drop control. App Lock & Security Protect your authenticator app with PIN, Face ID, or Touch ID. Enable auto-lock to secure your 2FA codes, MFA accounts, and passwords. Full Control of Your Accounts Edit, update, or remove your authentication entries, TOTP accounts, and passwords anytime. Manage all your 2FA and MFA accounts in one place. Supports All Major Services Works with Google, Microsoft, Instagram, Facebook, Amazon, PayPal, Dropbox, and more. This authenticator app supports all major platforms for 2FA, MFA, and OTP authentication. Download Authenticator App Today Secure your digital life with a reliable authenticator, 2FA, MFA, TOTP generator, OTP code generator, and password manager. Protect your accounts from unauthorized access. Privacy Policy: https://sites.google.com/a1apps.co/privacypolicy-aiauthenticator/home Terms of Use: https://blog.a1apps.co/terms-of-use-a1-authenticator/

Screenshots

4Lexile3 screens
Authenticator App4 screens

Verdict

The call

The clearest difference is rating: Authenticator App at 4.6 against 4Lexile's 1.8. Authenticator App also leads on review sentiment (38% vs 0%) and ratings volume (908 vs 10). 4Lexile's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price, update cadence 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 12 in-app purchases, starting at $6.99 per 7 days. 4Lexile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Authenticator App holds the better App Store score, 4.6 against 1.8. That said, the two scores are not equally well evidenced: Authenticator App has 908 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 0% of 4Lexile's written reviews are positive against 38% of Authenticator App's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

Scorecard7 real differences · 3 level
4Lexile versus Authenticator App: the parameters behind the verdict, then further details
Parameter4LexileAuthenticator App
PriceFreeFree
Rating1.8 (10 ratings)4.6 (908 ratings) — better
Positive reviews0.0% of reviews37.9% of reviews — better
Number of ratings10908 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS9.0 — better15.0
Further details — not scored
Size25 MB320 MB
Age rating4+4+
Developer4point IncA1Apps

Customer experience

4Lexile

All ratings10 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Authenticator App

All ratings908 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews29 reviews
Positive37.9%
Neutral0.0%
Negative62.1%

In-app purchases

None

4Lexile

No in-app purchases

12 purchases

Authenticator App

Subscriptions12
  • Pro Weekly7 Days trial$6.997 Days
  • Pro Weekly Plan$6.997 Days
  • Pro Weekly Plan3 Days trial$6.997 Days
Show 9 more
  • Pro Weekly Plan$9.997 Days
  • Pro Weekly Plan3 Days trial$9.997 Days
  • Premium Monthly$9.991 Month
  • Premium Monthly$12.991 Month
  • Pro Yearly$24.991 Year
  • Pro Yearly$49.991 Year
  • Pro Yearly3 Days trial$49.991 Year
  • Pro Yearly$59.991 Year
  • Pro Yearly Plan3 Days trial$59.991 Year

Questions

Is 4Lexile free?
4Lexile is free to download, with no in-app purchases.
Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Which has better reviews, 4Lexile or Authenticator App?
Authenticator App is rated higher. 4Lexile averages 1.8 out of 5 from 10 ratings, while Authenticator App averages 4.6 from 908 ratings.
Do 4Lexile or Authenticator App have ads?
Authenticator App shows ads; 4Lexile does not.
Which is updated more often, 4Lexile or Authenticator App?
4Lexile ships an update every 3 weeks, and Authenticator App every 3 weeks. Most recently, 4Lexile was updated on October 3, 2026 and Authenticator App on October 11, 2026.

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