Comparison

TOTP Authenticator vs E

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

E

This app provides robust two-factor and multi-factor authentication for corporate accounts. It ensures enhanced security for various systems integrated with a corporate authentication platform. Requires a compatible E-passport API system for operation.

Highlights
  • Two-factor authentication
  • Multi-factor authentication
  • Corporate account security
  • Enhanced login protection
  • Integration with E-passport API
Features
Read full description

E-passport Mobile - приложение-аутентификатор для надёжной защиты корпоративных аккаунтов. Позволяет обеспечить усиленную и строгую двухфакторную и многофакторную аутентификацию в различные системы, подключенные к корпоративной системе аутентификации E-passport. Для использования требуется наличие размещённой в инфраструктуре или в облачном сервисе системы аутентификации, совместимой с E-passport API.

Screenshots

TOTP Authenticator4 screens
E4 screens

Verdict

The call

The clearest difference is in-app purchases: E at none against TOTP Authenticator's 4. TOTP Authenticator's advantage is review sentiment (65% vs 40%) and device support (5 vs 3). On price, update cadence, ads 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. TOTP Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. E asks for nothing beyond the download.

UpkeepUpdate frequency

TOTP Authenticator ships an update every 9 days, E every 8 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
TOTP Authenticator versus E: the parameters behind the verdict, then further details
ParameterTOTP AuthenticatorE
PriceFreeFree
Rating4.8 (167 ratings) — better—
Positive reviews65.3% of reviews — better40.0% of reviews
Number of ratings167 — better—
Update frequencyEvery 9 daysEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size24 MB195 MB
Age rating4+4+
DeveloperSparrow Code LTDAlexandr Makhnovskiy

Customer experience

TOTP Authenticator

All ratings167 ratings
Positive94.6%
Neutral0.0%
Negative5.4%
Written reviews72 reviews
Positive65.3%
Neutral1.4%
Negative33.3%

E

Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

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

E

No in-app purchases

Questions

Is TOTP Authenticator free?
TOTP Authenticator is free to download, with in-app purchases available.
Is E free?
E is free to download, with no in-app purchases.
Do TOTP Authenticator or E have ads?
Neither TOTP Authenticator nor E shows ads.
Which is updated more often, TOTP Authenticator or E?
TOTP Authenticator ships an update every 9 days, and E every 8 days. Most recently, TOTP Authenticator was updated on September 22, 2026 and E on September 21, 2026.

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