Comparison

TOTP Authenticator vs Otpkey 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

Otpkey Authenticator

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

Highlights
  • Multi-factor authentication
  • Offline OTP generation
  • QR code scanning and export
  • Biometric authentication support
  • Clipboard code copying
  • Widget and Watch App support
Features
Read full description

Otpkey Authenticator generates one-time passwords for two-factor authentication on iPhone, iPad, Mac and Apple Watch, and keeps them in sync through iCloud Keychain. It works completely offline. No account, no server: your secrets stay in the system Keychain on your devices, protected by your passcode, Face ID or Touch ID. Otpkey Authenticator works with every service that supports standard TOTP or HOTP codes, including Google, Microsoft, Amazon, GitHub, Facebook, X, Dropbox, Discord, PayPal, AWS, Synology and many more. Switching from Google Authenticator? Scan its "Export accounts" QR code and all of your accounts are imported at once. Features ======= - Available for iPhone, iPad, Mac and Apple Watch, synced through iCloud Keychain - Folders and search to organize many accounts - Scan QR codes to add accounts - Import all accounts from a Google Authenticator export QR code - Export any account as a QR code - Encrypted, password-protected backup and restore (PEM file format) - Face ID / Touch ID lock - Hide codes on screen, copy with one tap - Custom account icons - iOS: Home Screen widgets (small, medium and large) - iOS: Apple Watch app with complication - macOS: Lives in the menu bar, always one click away - macOS: Scan QR codes straight from the screen - macOS: Launch at login, auto hide - macOS: Drag and drop Specifications =========== - Type: Time-based (TOTP), Counter-based (HOTP) - Algorithm: SHA-1, SHA-256, SHA-512 - Digits: 6, 8, 10 - Period: 30, 60 seconds Standards ======= TOTP - Time-based One-Time Password Algorithm (RFC 6238) HOTP - HMAC-Based One-Time Password Algorithm (RFC 4226)

Screenshots

TOTP Authenticator4 screens
Otpkey Authenticator4 screens

Verdict

The call

The clearest difference is rating: TOTP Authenticator at 4.8 against Otpkey Authenticator's 1.0. TOTP Authenticator also leads on update cadence (every 9 days vs every 2 months) and ratings volume (167 vs 2). Otpkey Authenticator's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.0). On price, ads 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. TOTP Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. Otpkey Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TOTP Authenticator holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: TOTP Authenticator has 167 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 65% of TOTP Authenticator's written reviews are positive against 50% of Otpkey Authenticator's.

UpkeepUpdate frequency

TOTP Authenticator ships an update every 9 days, Otpkey Authenticator every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
TOTP Authenticator versus Otpkey Authenticator: the parameters behind the verdict, then further details
ParameterTOTP AuthenticatorOtpkey Authenticator
PriceFreeFree
Rating4.8 (167 ratings) — better1.0 (2 ratings)
Positive reviews65.3% of reviews — better50.0% of reviews
Number of ratings167 — better2
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac, Apple WatchiPhone, iPad, iPod, Mac, Apple Watch
Requires iOS15.013.0 — better
Further details — not scored
Size24 MB22 MB
Age rating4+4+
DeveloperSparrow Code LTDCertchip Corp

Customer experience

TOTP Authenticator

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

Otpkey Authenticator

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

Otpkey Authenticator

No in-app purchases

Questions

Is TOTP Authenticator free?
TOTP Authenticator is free to download, with in-app purchases available.
Is Otpkey Authenticator free?
Otpkey Authenticator is free to download, with no in-app purchases.
Which has better reviews, TOTP Authenticator or Otpkey Authenticator?
TOTP Authenticator is rated higher. TOTP Authenticator averages 4.8 out of 5 from 167 ratings, while Otpkey Authenticator averages 1.0 from 2 ratings.
Do TOTP Authenticator or Otpkey Authenticator have ads?
Neither TOTP Authenticator nor Otpkey Authenticator shows ads.
Which is updated more often, TOTP Authenticator or Otpkey Authenticator?
TOTP Authenticator ships an update every 9 days, and Otpkey Authenticator every 2 months. Most recently, TOTP Authenticator was updated on September 30, 2026 and Otpkey Authenticator on October 2, 2026.

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