# OTP Auth vs OTP Authenticator

The clearest difference is review sentiment: OTP Authenticator at 100% against OTP Auth's 0%. OTP Authenticator also leads on in-app purchases (none vs 1) and update cadence (every 6 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

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

OTP Auth ships an update every 6 months, OTP Authenticator every 6 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | OTP Auth | OTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (19 ratings)](https://appshunter.io/ios/app/otp-auth-authenticator/id1436497541/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 6 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [浩 王](https://appshunter.io/developer/1055265396) | [凯 程](https://appshunter.io/developer/1232505614) |

## 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 |


### OTP Authenticator

[App page](https://appshunter.io/ios/app/otp-authenticator-totp/id1551264305)

This app provides a secure and visually appealing way to manage your TOTP (Time-based One-Time Password) codes. It offers a clean interface, customizable icons, and convenient desktop widgets, all while prioritizing offline security and minimal storage usage.

**Highlights:** Visually appealing design, Secure offline operation, Customizable icons, Desktop widgets, Minimal storage footprint, SwiftUI implementation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OTP Auth free?

OTP Auth is free to download, with in-app purchases available.

### Is OTP Authenticator free?

OTP Authenticator is free to download, with no in-app purchases.

### Do OTP Auth or OTP Authenticator have ads?

Neither OTP Auth nor OTP Authenticator shows ads.

### Which is updated more often, OTP Auth or OTP Authenticator?

OTP Auth ships an update every 6 months, and OTP Authenticator every 6 days. Most recently, OTP Auth was updated on November 6, 2026 and OTP Authenticator on November 3, 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.*