Comparison

Comtarsia Authenticator vs TOTP Authenticator

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

Head to head
About

Comtarsia Authenticator

Features
Read full description

2-factor push authentication app for use with the Comtarsia SignOn Solutions. Provides strong security for desktop logon, Active Directory, LDAP, web applications... Compatible protocols: HOTP (RFC 4226), TOTP (RFC 6238), COTP (extended TOTP with cloud based push notifications) Biometric support, Secure secret storage

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

Screenshots

Comtarsia Authenticator2 screens
TOTP Authenticator4 screens

Verdict

The call

The clearest difference is in-app purchases: Comtarsia Authenticator at none against TOTP Authenticator's 4. Comtarsia Authenticator also leads on iOS requirement (12.4 vs 15.0). TOTP Authenticator's advantage is update cadence (every 11 days vs every 63 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. Comtarsia Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

Comtarsia Authenticator ships an update every 63 months, TOTP Authenticator every 11 days. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
Comtarsia Authenticator versus TOTP Authenticator: the parameters behind the verdict, then further details
ParameterComtarsia AuthenticatorTOTP Authenticator
PriceFreeFree
Rating—4.7 (174 ratings) — better
Positive reviews—66.2% of reviews
Number of ratings—174 — better
Update frequencyEvery 63 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS12.4 — better15.0
Further details — not scored
Size2 MB24 MB
Age rating4+4+
DeveloperComtarsia IT Services GmbHSparrow Code LTD

In-app purchases

None

Comtarsia Authenticator

No 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

Questions

Is Comtarsia Authenticator free?
Comtarsia Authenticator is free to download, with no in-app purchases.
Is TOTP Authenticator free?
TOTP Authenticator is free to download, with in-app purchases available.
Do Comtarsia Authenticator or TOTP Authenticator have ads?
Neither Comtarsia Authenticator nor TOTP Authenticator shows ads.
Which is updated more often, Comtarsia Authenticator or TOTP Authenticator?
Comtarsia Authenticator ships an update every 63 months, and TOTP Authenticator every 11 days. Most recently, Comtarsia Authenticator was updated on October 12, 2026 and TOTP Authenticator on October 13, 2026.

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