Comparison

OTP Auth vs TimeKey

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

Head to head
About

OTP Auth

Enhance your account security with two-factor authentication on your iPhone and iPad. This app supports numerous popular services and offers robust encryption for all your data. It works offline and prioritizes user privacy by not collecting or transmitting personal information.

Highlights
  • Two-factor authentication support
  • Encrypted iCloud Sync
  • Siri and Apple Watch support
  • Notification Center widget
  • Safari extension for password pasting
  • Face ID/Touch ID security
  • Encrypted backups and import/export
Read full description

OTP Auth adds support for two-factor authentication to your iPhone and iPad. It can be used with Dropbox, Facebook, GitHub, Google Mail and many more. Make your accounts safe again! Features: - Ads free - Encrypted iCloud Sync - Siri Support - Apple Watch support - Notification Center widget - Safari extension for pasting passwords into websites - Secure application using Face ID/Touch ID (or password) - Create encrypted backups of all accounts - Import/Export encrypted accounts using AirDrop, iCloud, Dropbox, Mail, ... - Works offline All data stored by OTP Auth is stored using strong AES-256 encryption. This applies for all data. In particular, for both locally stored data as well as data stored in the iCloud Drive (when iCloud Sync is enabled). The password for those files never leaves your device such that noone but you can read your data. OTP Auth does not collect information about you or send them anywhere. You won't be asked to allow access to your contacts or your location. And most important: OTP Auth does not connect to the internet and will not send your accounts to someone else! (Unless you enable iCloud sync where an AES-256 encrypted copy of your accounts is stored in your iCloud Drive. The password for that copy will never leave your phone.) Follow me on Twitter: @otpauth

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

OTP Auth4 screens
TimeKey3 screens

Verdict

The call

The clearest difference is rating: OTP Auth at 4.6 against TimeKey's 3.7. OTP Auth also leads on ads (none vs shown) and ratings volume (463 vs 3). On price, in-app purchases, monetization model 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. OTP Auth sells 1 one-off in-app purchase and TimeKey sells 2 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OTP Auth holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: OTP Auth has 463 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

OTP Auth ships an update every 2 weeks, TimeKey every 6 weeks. The most recent releases landed on July 22, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
OTP Auth versus TimeKey: the parameters behind the verdict, then further details
ParameterOTP AuthTimeKey
PriceFreeFree
Rating4.6 (463 ratings) — better3.7 (3 ratings)
Positive reviews77.9% of reviews—
Number of ratings463 — better3
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size22 MB55 MB
Age rating4+4+
DeveloperRoland MoersNaoki Chiba

Customer experience

OTP Auth

All ratings463 ratings
Positive90.3%
Neutral2.6%
Negative7.1%
Written reviews204 reviews
Positive77.9%
Neutral5.9%
Negative16.2%

TimeKey

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

Bugs and requests

OTP Auth

Reported bugs

3 issues
  • Sync issues causing data loss
  • Widget not displaying codes correctly
  • Crashes on certain iOS versions

Requested features

4 requests
  • Larger text/font size options
  • Alphabetical sorting of accounts
  • Automatic account refresh/update
  • Ability to edit account details

TimeKey

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

OTP Auth

One-time1
  • OTP Auth Pro$3.99
2 purchases

TimeKey

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

Questions

Is OTP Auth free?
OTP Auth is free to download, with in-app purchases available.
Is TimeKey free?
TimeKey is free to download, with in-app purchases available.
Which has better reviews, OTP Auth or TimeKey?
OTP Auth is rated higher. OTP Auth averages 4.6 out of 5 from 463 ratings, while TimeKey averages 3.7 from 3 ratings.
Do OTP Auth or TimeKey have ads?
TimeKey shows ads; OTP Auth does not.
Which is updated more often, OTP Auth or TimeKey?
OTP Auth ships an update every 2 weeks, and TimeKey every 6 weeks. Most recently, OTP Auth was updated on July 22, 2026 and TimeKey on September 15, 2026.

Other comparisons