Comparison

Two factor authenticator vs Authenticator OTP 6

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

Head to head
About

Two factor authenticator

Features
Read full description

We adds an extra layer of security to your online accounts by adding a second step of verification when you sign in. This means that in addition to your password, you'll also need to enter a code that is generated by our app on your phone. The verification code can be generated by our app on your phone, even if you don't have a network or cellular connection. • Sync your Authenticator codes to your accounts and across your devices. This way, you can always access them even if you lose your phone. • Set up your Authenticator accounts automatically with a QR code. This is quick and easy, and it helps to ensure that your codes are set up correctly. • Support for multiple accounts. You can use the Authenticator app to manage multiple accounts, so you don't have to switch between apps every time you need to sign in. • Support for time-based and counter-based code generation. You can choose the type of code generation that best suits your needs. • Transfer accounts between devices with a QR code. This is a convenient way to move your accounts to a new device. To use app with accounts, you need to enable 2-Step Verification on your accounts. Terms of use: https://devworldvn.com/term Privacy link: https://devworldvn.com/privacy

About

Authenticator OTP 6

Features
Read full description

Secure Authenticator is a simple and reliable app for protecting your online accounts with two‑factor authentication (2FA). Add your services in seconds by scanning a QR code or entering a setup key manually, and instantly get time‑based one‑time passwords (TOTPs) right on your device. All codes are generated locally on your phone using standard algorithms, so your secrets never leave the device. There is no sign‑up, no unnecessary permissions, and no dependence on external servers – just fast, private, and secure authentication. Organize your accounts with clear labels, reorder them as you like, and quickly copy codes when logging in. Secure Authenticator is compatible with most major services that support TOTP/HOTP‑based two‑factor authentication, helping you keep email, social networks, cloud storage, and other accounts safer with minimal effort. Note: in order to save codes, you need to obtain a subscription Privacy policy: https://drive.google.com/drive/u/0/folders/1go342R9lW-0mzFJ9T102uEMbSZxtmu4C?ths=true Terms of use: https://drive.google.com/drive/u/0/folders/1qht-gU0gvZp7L8S0kiaviNurEEQHCNxI?ths=true

Screenshots

Two factor authenticator4 screens
Authenticator OTP 64 screens

Verdict

The call

The clearest difference is ads: Authenticator OTP 6 at none against Two factor authenticator's shown. Authenticator OTP 6 also leads on update cadence (every 5 days vs monthly). Two factor authenticator's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement 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. Two factor authenticator sells 3 in-app purchases, starting at $1.99 per 7 days and Authenticator OTP 6 sells 1 in-app purchase, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Two factor authenticator ships an update monthly, Authenticator OTP 6 every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level
Two factor authenticator versus Authenticator OTP 6: the parameters behind the verdict, then further details
ParameterTwo factor authenticatorAuthenticator OTP 6
PriceFreeFree
Update frequencyMonthlyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size45 MB2 MB
Age rating4+4+
Developernguyen thanhMarika Kellner

In-app purchases

3 purchases

Two factor authenticator

Subscriptions3
  • 1 Week Premium$1.997 Days
  • One Month Premium$4.991 Month
  • 1 Year Premium3 Days trial$19.991 Year
1 purchases

Authenticator OTP 6

Subscriptions1
  • authenticator subscription3 Days trial$6.997 Days

Questions

Is Two factor authenticator free?
Two factor authenticator is free to download, with in-app purchases available.
Is Authenticator OTP 6 free?
Authenticator OTP 6 is free to download, with in-app purchases available.
Do Two factor authenticator or Authenticator OTP 6 have ads?
Two factor authenticator shows ads; Authenticator OTP 6 does not.
Which is updated more often, Two factor authenticator or Authenticator OTP 6?
Two factor authenticator ships an update monthly, and Authenticator OTP 6 every 5 days. Most recently, Two factor authenticator was updated on October 30, 2026 and Authenticator OTP 6 on November 5, 2026.

Other comparisons