Comparison

Authenticator TOTP vs ZETIT Key

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

Head to head
About

Authenticator TOTP

Secure your online accounts with this two-factor authentication app. Generate time-based one-time passwords offline by scanning QR codes. Offers widgets, Apple Watch support, and biometric lock for enhanced security.

Highlights
  • Generate 2FA codes offline
  • Scan QR codes to add accounts
  • Lock Screen Widgets
  • Apple Watch app
  • Password AutoFill integration
  • Biometric Lock (Face ID/Touch ID)
  • iCloud Sync
Features
Read full description

Protect your online accounts with TOTP Authenticator — the fast, secure, and beautifully designed two-factor authentication app. Generate time-based one-time passwords (TOTP) right on your device, no internet connection required. Setting up is effortless. Just scan a QR code and your account is ready in seconds. Whether it's Google, GitHub, Amazon, Discord, or any service that supports 2FA — TOTP Authenticator has you covered. ▸ KEY FEATURES • Scan QR codes to add accounts instantly • Generate 2FA codes offline — no network needed • Lock Screen Widgets for quick access to your codes • Apple Watch app — view codes right from your wrist • Password AutoFill integration (iOS 18+) — codes fill automatically • Biometric Lock with Face ID or Touch ID • iCloud Sync across all your Apple devices • Export accounts as QR codes for easy backup or migration • Support for SHA-1, SHA-256, and SHA-512 algorithms • Available in 38 languages ▸ SECURITY FIRST Your secrets never leave your device unprotected. All sensitive data is stored in the iOS Keychain — not in plain text, not in a database. Codes are generated locally on your device, so they work even in airplane mode. Optional biometric lock adds an extra layer of protection. ▸ WIDGETS & AUTOFILL Add Lock Screen and Home Screen widgets to see your codes at a glance. With iOS 18+ Password AutoFill, your verification codes are suggested automatically when you sign in to apps and websites — no copying and pasting. ▸ PREMIUM Premium unlocks everything: • Unlimited accounts • Apple Watch companion app • iCloud Sync • Export accounts as QR codes • Biometric app lock Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple ID account settings. Privacy Policy: https://github.com/spiroba/Totp/blob/main/PRIVACY_POLICY.md Terms of Use: https://github.com/spiroba/Totp/blob/main/TERMS_OF_SERVICE.md

About

ZETIT Key

Features
Read full description

ZETIT Key is an application for secure two—factor authentication. Confirm your login to corporate services with a single tap or with one-time TOTP codes. Opportunities: — Push notifications for instant login confirmation - Generation of one—time TOTP codes — Application protection with PIN and biometrics (Face ID/ Touch ID) — Support for multiple accounts — Support for third-party 2FA sites (Google, GitHub, Microsoft, Synology, etc.)

Screenshots

Authenticator TOTP4 screens
ZETIT Key4 screens

Verdict

The call

The clearest difference is in-app purchases: ZETIT Key at none against Authenticator TOTP's 4. ZETIT Key also leads on iOS requirement (15.1 vs 17.6). Authenticator TOTP's advantage is update cadence (every 2 weeks vs every 2 months). 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. Authenticator TOTP sells 4 in-app purchases, starting at $3.49 per 7 days. ZETIT Key asks for nothing beyond the download.

UpkeepUpdate frequency

Authenticator TOTP ships an update every 2 weeks, ZETIT Key every 2 months. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 6 level
Authenticator TOTP versus ZETIT Key: the parameters behind the verdict, then further details
ParameterAuthenticator TOTPZETIT Key
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size15 MB20 MB
Age rating4+4+
DeveloperBoris SpiroZETIT

In-app purchases

4 purchases

Authenticator TOTP

Subscriptions3
  • Weekly3 Days trial$3.497 Days
  • Monthly3 Days trial$7.991 Month
  • Yearly3 Days trial$49.991 Year
One-time1
  • Lifetime$79.99
None

ZETIT Key

No in-app purchases

Questions

Is Authenticator TOTP free?
Authenticator TOTP is free to download, with in-app purchases available.
Is ZETIT Key free?
ZETIT Key is free to download, with no in-app purchases.
Do Authenticator TOTP or ZETIT Key have ads?
Neither Authenticator TOTP nor ZETIT Key shows ads.
Which is updated more often, Authenticator TOTP or ZETIT Key?
Authenticator TOTP ships an update every 2 weeks, and ZETIT Key every 2 months. Most recently, Authenticator TOTP was updated on October 31, 2026 and ZETIT Key on November 9, 2026.

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