Comparison

OTP Auth vs Mobile OTP Authenticator

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

Head to head
About

OTP Auth

Generate and manage two-factor authentication codes offline. Organize accounts with custom groups, search, and widgets. Securely store keys and choose your preferred protection methods.

Highlights
  • Offline code generation
  • QR code scanning
  • Custom account groups
  • Search functionality
  • Home Screen and Lock Screen widgets
  • Apple Watch app
  • Biometric app lock
Features
Read full description

Keep your two-factor codes in one place. OTP Auth is an authenticator for iPhone and iPad that generates verification codes offline and helps you find the right account with groups and search. Generate codes, even offline • Add accounts by scanning a QR code, reading one from an image, or entering a setup key manually. • Generate TOTP and HOTP codes without an internet connection after setup. • See the countdown for time-based codes and tap to copy. Keep accounts organized • Separate work and personal accounts with custom groups. • Drag to reorder and search by name. • Choose icon symbols and colors, with light and dark themes. Codes within reach • View TOTP codes in Home Screen and Lock Screen widgets, or on Apple Watch. • Search accounts and add favorites on Apple Watch. • Lock Screen widgets require iOS 16 or later. Choose your protection • Authentication keys are stored in the device's system Keychain. • Enable the Face ID or Touch ID app lock and choose to hide codes by default. Premium: sync, back up and transfer The following features require an in-app purchase: • iCloud sync: sync authentication accounts between devices. • Encrypted backups: export a password-protected backup and import it when moving to a new device. • Account transfers: import supported authenticator backup files or transfer QR codes. • Service logos: match accounts with their services' icons. Code generation, QR setup, groups, search, icon symbols and colors, widgets, and Apple Watch features are free to use. Works with websites and services that support TOTP or HOTP. Enable two-factor authentication with the service before adding its account to OTP Auth.

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.

Screenshots

OTP Auth4 screens
Mobile OTP Authenticator3 screens

Verdict

The call

OTP Auth and Mobile OTP Authenticator both sit at 3.4 stars, but that hides the real split: 100% of Mobile OTP Authenticator's written reviews are positive against 0% of OTP Auth's. Mobile OTP Authenticator also leads on in-app purchases (none vs 1). OTP Auth's advantage is ratings volume (19 vs 2). On price, rating, update cadence and ads 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. Mobile OTP Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.4 for OTP Auth against 3.5 for Mobile OTP Authenticator. That said, the two scores are not equally well evidenced: OTP Auth has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 0% of OTP Auth's written reviews are positive against 100% of Mobile OTP Authenticator's.

UpkeepUpdate frequency

OTP Auth ships an update every 6 months, Mobile OTP Authenticator every 8 months. The most recent releases landed on November 2, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 6 level
OTP Auth versus Mobile OTP Authenticator: the parameters behind the verdict, then further details
ParameterOTP AuthMobile OTP Authenticator
PriceFreeFree
Rating3.4 (19 ratings)3.5 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings19 — better2
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size11 MB2 MB
Age rating4+4+
Developer浩 王Albert Parti

Customer experience

OTP Auth

All ratings19 ratings
Positive57.9%
Neutral5.3%
Negative36.8%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Mobile OTP Authenticator

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

In-app purchases

1 purchases

OTP Auth

One-time1
  • OTPAuth Premium$1.99
None

Mobile OTP Authenticator

No in-app purchases

Questions

Is OTP Auth free?
OTP Auth is free to download, with in-app purchases available.
Is Mobile OTP Authenticator free?
Mobile OTP Authenticator is free to download, with no in-app purchases.
Which has better reviews, OTP Auth or Mobile OTP Authenticator?
Mobile OTP Authenticator is rated higher. OTP Auth averages 3.4 out of 5 from 19 ratings, while Mobile OTP Authenticator averages 3.5 from 2 ratings.
Do OTP Auth or Mobile OTP Authenticator have ads?
Neither OTP Auth nor Mobile OTP Authenticator shows ads.
Which is updated more often, OTP Auth or Mobile OTP Authenticator?
OTP Auth ships an update every 6 months, and Mobile OTP Authenticator every 8 months. Most recently, OTP Auth was updated on November 2, 2026 and Mobile OTP Authenticator on October 17, 2026.

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