# OTP Auth vs Mobile OTP Authenticator

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.

Both are free to download. OTP Auth sells 1 one-off in-app purchase. Mobile OTP Authenticator asks for nothing beyond the download.

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.

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.

## The numbers

| Metric | OTP Auth | Mobile OTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (19 ratings)](https://appshunter.io/ios/app/otp-auth-authenticator/id1436497541/reviews) | **[3.5 (2 ratings)](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963/reviews)** |
| Number of ratings | **19** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 2 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [浩 王](https://appshunter.io/developer/1055265396) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### OTP Auth

[App page](https://appshunter.io/ios/app/otp-auth-authenticator/id1436497541)

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:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OTPAuth Premium | $1.99 | one-time |


### Mobile OTP Authenticator

[App page](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*