Comparison

Authenticator App vs Otto AI

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 two-factor authentication by generating time-based one-time passwords (TOTP) and push authentication. It adds an extra layer of security to your online accounts by creating unique codes that help protect against unauthorized access.

Highlights
  • Two-factor authentication
  • TOTP & HOTP token generation
  • 30 & 60 second tokens
  • QR code scanner
  • Password protection for tokens
  • No internet connection required for codes
Features
Read full description

"The 2FA Authenticator App is a free software that provides two-factor authentication by creating time-based one-time passwords (TOTP) and push authentication. By implementing TOTP on websites, it helps maintain the security of your online accounts with an extra layer of protection. With the 2FA Authenticator App, the generated one-time tokens add an additional degree of security to your online accounts. By simply scanning a QR code, your account is secured. Using this 2FA Authenticator app on websites that accept TOTP helps keep your online accounts safe from hackers. Moreover, to further protect your one-time tokens, you can use password protection. Once your account is set up for TOTP authentication using the Mobile Authenticator, all you have to do is copy and paste the code into your account to use the 2FA Authenticator. It’s that easy! The 2FA Authentication app is a reliable Two Factor Authentication tool that generates Time-based One-time token passwords (TOTP) to keep your online accounts secure on supporting TOTP websites. With 2-Step Verification, you’ll need a second step of verification, such as a code generated by the Authenticator app on your phone, in addition to your password to access your online account. The generated codes provide an additional layer of security by acting as one-time tokens that safeguard your online accounts. Simply scan a QR code and your account is secure. The 2FA Authenticator app is a trusted tool to help you maintain the security of your online accounts on supporting TOTP websites. > Two Factor Authentication TOTP & HOTP Tokens Generator Generate 30 & 60 seconds Tokens QR Code Scanner for Adding Tokens User Manual or How to use Advanced Security for Screenshot Capturing( Do not allow Screenshot capture in 2FA Authenticator app) Get the all new 2FA Authentication app for FREE!!! This app creates unique codes that provide an additional layer of security for your online accounts. After scanning a QR code, your account is safeguarded. The 2FA Authenticator aids in securing your accounts on TOTP-supported websites. By using the Mobile Authenticator, your account is registered for TOTP Authentication, and you simply have to copy and paste the code to complete the process. Similar to other well-known authenticator apps (which shall remain unnamed), this 2FA Authenticator app generates one-time password codes that work with numerous online accounts and even function without an internet connection. However, it includes several improvements, including the ability to backup your accounts to your preferred cloud service, transfer them seamlessly to a new device, or even share them with others. The Mobile (2FA Authenticator) app generates Time-based One-time Passwords (TOTP) and PUSH authentication. These one-time tokens are produced on your device and used in combination with your password to protect your accounts from hackers, providing an unbreachable level of security. By enabling two-factor authentication in your account settings, scanning the QR code provided, and pasting the code, you can ensure that your online accounts are fully secured. • Easily identify accounts by their corresponding 2FA Authenticator app icons • Conveniently copy one-time passcodes to your clipboard • Safely back-up and restore your accounts • Seamlessly share your accounts by scanning a QR code • Add an extra layer of security by authorizing with your fingerprint before sharing or creating back-ups • Keep your accounts secure with encrypted storage • Trustworthy security measures: this app does not require internet permission and cannot secretly transmit your information to untrusted servers." Terms of use : https://intuitive.studio/minimalist/terms/ Terms of Use (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Otto AI

Features
Read full description

Bring your Gmail and Outlook inboxes into Otto. Catch important messages, prepare replies and manage follow-ups with an AI assistant. You review important actions before they happen. FIND WHAT NEEDS YOU Ask Otto to summarize your inbox, surface important messages and help you take the next step. REVIEW YOUR REPLY Prepare a reply in plain English. Read and edit the draft before you approve sending it. KEEP FOLLOW-UPS MOVING Snooze messages, schedule sends and set follow-up reminders. Set up briefs and digests to fit your routine. GMAIL AND OUTLOOK Connect supported Google and Microsoft mailboxes. Use your mail, calendar, tasks and notes on iPhone and iPad. Provider support and available actions can differ; work or school accounts may require administrator permission. START FREE Read and manage one connected mailbox, with limited AI usage. Explore sample data before connecting an account. PLUS AND PRO Paid plans add more connected accounts and higher AI allowances. Pro includes additional advanced assistant features. AI usage is metered and subject to plan limits; the app shows your current allowance and available plans before purchase. Multiple connected accounts require a paid plan. YOUR CHOICE, YOUR CONTROL Check drafts and important actions before approving them. Review the privacy policy for how connected account data and AI requests are handled. Subscriptions renew automatically unless canceled through your store account. Prices and available offers are shown in the app before purchase. Privacy: https://ottomail.app/privacy Terms of Use (EULA): https://ottomail.app/terms

Screenshots

Authenticator App4 screens
Otto AI4 screens

Verdict

The call

The clearest difference is update cadence: Otto AI at weekly against Authenticator App's monthly. Authenticator App's advantage is iOS requirement (13.0 vs 15.0). On price, ads, 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 1 in-app purchase, starting at $2.00 per month and Otto AI sells 6 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Authenticator App ships an update monthly, Otto AI weekly. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 7 level
Authenticator App versus Otto AI: the parameters behind the verdict, then further details
ParameterAuthenticator AppOtto AI
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size59 MB12 MB
Age rating17+4+
DeveloperDenis VithaniArghyadeep Karmakar

In-app purchases

1 purchases

Authenticator App

Subscriptions1
  • Authenticator Subscription$2.001 Month
6 purchases

Otto AI

Subscriptions6
  • Otto Plus$1.997 Days
  • Otto Plus$4.991 Month
  • Otto Pro$5.997 Days
Show 3 more
  • Otto Pro$14.991 Month
  • Otto Plus$39.991 Year
  • Otto Pro$119.991 Year

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is Otto AI free?
Otto AI is free to download, with in-app purchases available.
Do Authenticator App or Otto AI have ads?
Neither Authenticator App nor Otto AI shows ads.
Which is updated more often, Authenticator App or Otto AI?
Authenticator App ships an update monthly, and Otto AI weekly. Most recently, Authenticator App was updated on October 2, 2026 and Otto AI on October 14, 2026.

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