Comparison

Mobile OTP Authenticator vs TimeKey

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

Head to head
About

Mobile OTP Authenticator

Securely manage your two-factor authentication codes. Easily add accounts by scanning QR codes or manual entry. Protect your online accounts with industry-standard HOTP and TOTP algorithms.

Highlights
  • QR code scanning for account setup
  • Manual account entry
  • Secure data storage in iOS Keychain
  • Supports HOTP and TOTP algorithms
  • Works with popular services like Google, Facebook, Amazon
Read full description

Scan the QR code issued by the two-factor authentication and automatically add the account you want to protect or select manual entry to manually set up the account. The account is stored in data security in the iOS key holder. The application supports all services that provide two-factor authentication using HOTP and TOTP algorithms. For example, Google, Facebook, Dropbox, Amazon, GitHub, Synology…. etc.

About

TimeKey

This app generates secure Time-based One-Time Passwords (TOTP) for two-factor authentication, protecting your online accounts. It offers local data storage, biometric security, and an intuitive interface for easy account management and quick code access. No internet connection is needed for code generation.

Highlights
  • Generate secure TOTP codes
  • Import accounts via QR code or manual entry
  • Organize accounts with categories and favorites
  • Biometric authentication (Face ID/Touch ID)
  • Passcode protection
  • Dark mode support
  • Export QR codes for backup
Features
Read full description

TimeKey is a secure and easy-to-use TOTP (Time-based One-Time Password) authenticator app that helps protect your online accounts with two-factor authentication. KEY FEATURES: • Generate secure TOTP codes for two-factor authentication • Import accounts by scanning QR codes or entering details manually • Organize accounts with custom categories and favorites • Biometric authentication (Face ID/Touch ID) for added security • Passcode protection for app access • Dark mode support • Export QR codes for backup purposes • No internet connection required for code generation SECURITY FIRST: • All data is stored locally on your device • Biometric authentication support • Passcode protection • No cloud sync to prevent data breaches EASY TO USE: • Clean and intuitive interface • Quick search functionality • One-tap code copying • Custom categories for organization • Favorite accounts for quick access COMPATIBILITY: • Works with all services that support TOTP/RFC 6238 • Compatible with Google Authenticator, Authy, and other authenticator apps • Supports various hash algorithms (SHA1, SHA256, SHA512) • Customizable code length and time periods TimeKey is perfect for securing your accounts on services like Google, Facebook, Twitter, GitHub, Dropbox, and many more. Keep your digital life secure with TimeKey!

Screenshots

Mobile OTP Authenticator3 screens
TimeKey3 screens

Verdict

The call

The clearest difference is in-app purchases: Mobile OTP Authenticator at none against TimeKey's 2. Mobile OTP Authenticator also leads on ads (none vs shown). TimeKey's advantage is update cadence (every 6 weeks vs every 8 months) and rating (3.7 vs 3.5). On price, ratings volume, device support 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. TimeKey sells 2 in-app purchases, starting at $1.49 per month. Mobile OTP Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TimeKey holds the better App Store score, 3.7 against 3.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

Mobile OTP Authenticator ships an update every 8 months, TimeKey every 6 weeks. The most recent releases landed on June 9, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
Mobile OTP Authenticator versus TimeKey: the parameters behind the verdict, then further details
ParameterMobile OTP AuthenticatorTimeKey
PriceFreeFree
Rating3.5 (2 ratings)3.7 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings23 — better
Update frequencyEvery 8 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB55 MB
Age rating4+4+
DeveloperAlbert PartiNaoki Chiba

Customer experience

Mobile OTP Authenticator

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TimeKey

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Mobile OTP Authenticator

No in-app purchases

2 purchases

TimeKey

Subscriptions2
  • Premium 1 month$1.491 Month
  • Premium 1 year$13.491 Year

Questions

Is Mobile OTP Authenticator free?
Mobile OTP Authenticator is free to download, with no in-app purchases.
Is TimeKey free?
TimeKey is free to download, with in-app purchases available.
Which has better reviews, Mobile OTP Authenticator or TimeKey?
TimeKey is rated higher. Mobile OTP Authenticator averages 3.5 out of 5 from 2 ratings, while TimeKey averages 3.7 from 3 ratings.
Do Mobile OTP Authenticator or TimeKey have ads?
TimeKey shows ads; Mobile OTP Authenticator does not.
Which is updated more often, Mobile OTP Authenticator or TimeKey?
Mobile OTP Authenticator ships an update every 8 months, and TimeKey every 6 weeks. Most recently, Mobile OTP Authenticator was updated on June 9, 2026 and TimeKey on September 15, 2026.

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