Comparison

TOTP Authenticator vs LinOTP Authenticator

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

Head to head
About

TOTP Authenticator

This app generates time-based one-time passwords (TOTP) for enhanced account security. It supports two-factor authentication (2FA) by providing 6-digit codes required by many websites and services for login. The app includes extensive tutorials to guide users through setting up 2FA with various platforms.

Highlights
  • Generates 6-digit TOTP codes
  • Supports two-factor authentication (2FA)
  • QR code scanning for setup
  • Manual secret key entry
  • Over 100 step-by-step setup tutorials
  • Privacy focused
Features
Read full description

TOTP Authenticator generates 6-digit TOTP codes. Websites (or example Arbeitsagentur, NextCloud etc.) request these codes. This security feature is called two factor authentication or 2FA. How to sign in using TOTP? 1. Go to the “Security” section 2. Enable TOTP login 3. Scan the QR code or copy the secret key into your Authenticator 4. Done — 2FA is now enabled. From now on, you’ll need to enter a TOTP code from the Authenticator app whenever you log in The app also includes over 100 step-by-step tutorials with screenshots showing how to set up TOTP for various websites. Privacy Policy: https://totp-authenticator.com/privacy-policy/appstore Terms of Use: https://totp-authenticator.com/terms-of-use/appstore

About

LinOTP Authenticator

Features
Read full description

Use LinOTP Authenticator to secure your accounts with two-step authentication by generating verification codes to access your accounts. Two-step authentication provides an extra level of security for your accounts because every new verification code generated by LinOTP Authenticator is uniquely valid for a single sign in request only. LinOTP Authenticator is compatible with most of your accounts already as it supports standard TOTP and HOTP security algorithms. However, it works best with LinOTP, the enterprise-level 2FA solution. See https://linotp.de for more information. Features: * Generate verification codes offline * Edit your verification accounts * LinOTP Authenticator works with most providers and accounts * Biometric app lock * Simple QR code setup Permission notice: Camera: LinOTP Authenticator will ask you for the camera permission if you want to add accounts using the QR code scanner functionality.Use LinOTP Authenticator to secure your accounts with two-step authentication

Screenshots

TOTP Authenticator4 screens
LinOTP Authenticator4 screens

Verdict

The call

The clearest difference is in-app purchases: LinOTP Authenticator at none against TOTP Authenticator's 4. LinOTP Authenticator also leads on iOS requirement (13.0 vs 15.0). TOTP Authenticator's advantage is update cadence (every 9 days vs every 8 months) and device support (5 vs 3). On price and ads 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. TOTP Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. LinOTP Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

TOTP Authenticator ships an update every 9 days, LinOTP Authenticator every 8 months. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
TOTP Authenticator versus LinOTP Authenticator: the parameters behind the verdict, then further details
ParameterTOTP AuthenticatorLinOTP Authenticator
PriceFreeFree
Rating4.8 (167 ratings) — better—
Positive reviews65.3% of reviews—
Number of ratings167 — better—
Update frequencyEvery 9 days — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size24 MB24 MB
Age rating4+4+
DeveloperSparrow Code LTDKeyIdentity GmbH

In-app purchases

4 purchases

TOTP Authenticator

Subscriptions3
  • TOTP OTP Codes (1 week)7 Days trial$5.997 Days
  • TOTP OTP Codes (1 month)7 Days trial$9.991 Month
  • TOTP OTP Codes (1 year)7 Days trial$59.991 Year
One-time1
  • Unlimited TOTP OTP Codes$79.99
None

LinOTP Authenticator

No in-app purchases

Questions

Is TOTP Authenticator free?
TOTP Authenticator is free to download, with in-app purchases available.
Is LinOTP Authenticator free?
LinOTP Authenticator is free to download, with no in-app purchases.
Do TOTP Authenticator or LinOTP Authenticator have ads?
Neither TOTP Authenticator nor LinOTP Authenticator shows ads.
Which is updated more often, TOTP Authenticator or LinOTP Authenticator?
TOTP Authenticator ships an update every 9 days, and LinOTP Authenticator every 8 months. Most recently, TOTP Authenticator was updated on September 30, 2026 and LinOTP Authenticator on September 27, 2026.

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