# OTP Auth vs 99动态令牌

The clearest difference is in-app purchases: 99动态令牌 at none against OTP Auth's 1. 99动态令牌 also leads on update cadence (every 5 weeks vs every 6 months) and iOS requirement (13.0 vs 15.0). OTP Auth's advantage is device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. OTP Auth sells 1 one-off in-app purchase. 99动态令牌 asks for nothing beyond the download.

OTP Auth ships an update every 6 months, 99动态令牌 every 5 weeks. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OTP Auth | 99动态令牌 |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 29 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [浩 王](https://appshunter.io/developer/1055265396) | [FINEST CHAMPION LIMITED](https://appshunter.io/developer/1462747655) |

## 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 |


### 99动态令牌

[App page](https://appshunter.io/ios/app/99/id1487929226)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTP Auth free?

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

### Is 99动态令牌 free?

99动态令牌 is free to download, with no in-app purchases.

### Do OTP Auth or 99动态令牌 have ads?

Neither OTP Auth nor 99动态令牌 shows ads.

### Which is updated more often, OTP Auth or 99动态令牌?

OTP Auth ships an update every 6 months, and 99动态令牌 every 5 weeks. Most recently, OTP Auth was updated on November 3, 2026 and 99动态令牌 on October 29, 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.*