# 2FA Authenticator Password App vs 豆牙

The clearest difference is rating: 豆牙 at 4.5 against 2FA Authenticator Password App's 4.0. 豆牙 also leads on update cadence (daily vs every 3 weeks) and ratings volume (301 vs 4). 2FA Authenticator Password App's advantage is ads (none vs shown). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. 2FA Authenticator Password App sells 3 in-app purchases, starting at $5.99 per 7 days and 豆牙 sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

豆牙 holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: 豆牙 has 301 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

2FA Authenticator Password App ships an update every 3 weeks, 豆牙 daily. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 2FA Authenticator Password App | 豆牙 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/2fa-authenticator-password-app/id6758049314/reviews) | **[4.5 (301 ratings)](https://appshunter.io/ios/app/ai/id6770838479/reviews)** |
| Number of ratings | 4 | **301** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 11 MB | 71 MB |
| Requires iOS | 17.0 | **16** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [FOODS SH.P.K.](https://appshunter.io/developer/1870568962) | [SARA KRISTINE STRONG](https://appshunter.io/developer/1872294359) |

## What reviewers say

### 2FA Authenticator Password App

[App page](https://appshunter.io/ios/app/2fa-authenticator-password-app/id6758049314)

This app securely stores and displays time-based one-time verification codes for accessing online accounts. It offers features like automatic code refreshing, one-tap copying, and optional PIN protection for enhanced security. Manage your services easily through QR code scanning or manual entry.

**Highlights:** Stores and displays 2FA verification codes, Automatic code refresh every 30 seconds, One-tap code copying to clipboard, QR code scanning for adding services, Optional PIN code protection, Automatic app lock after minimization, Hide codes on app launch (Pro)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Pro | $5.99 | per 7 days |
| 2FA Authenticator Pro | $5.99 | per 7 days |
| 2FA Authenticator One-time | $119.99 | one-time |


### 豆牙

[App page](https://appshunter.io/ios/app/ai/id6770838479)

This AI assistant is tailored for Traditional Chinese users, offering a 100% Traditional Chinese interface and natural Taiwanese accent recognition. It excels at tasks requiring local context, slang, and cultural nuances, outperforming Western AI assistants for Chinese language needs. Features include voice and visual Q&A, translation, and assistance with academic, professional, and daily life tasks.

**Highlights:** 100% Traditional Chinese interface, Voice conversation with Taiwanese accent recognition, Visual Q&A with photo input, Real-time translation, Code writing, debugging, and optimization, Image generation from text

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 豆牙週會員 - 繁中問答潤稿・聊天寫作 包您搞定 | $3.99 | per 7 days |
| 豆牙月會員 - 寫作翻譯潤稿全包辦 | $5.99 | per month |
| 豆牙年會員 - 智慧對話助手全年包 | $12.99 | per year |
| 豆牙永久解鎖 - AI助理終身包到底 | $29.99 | one-time |


## Frequently asked questions

### Is 2FA Authenticator Password App free?

2FA Authenticator Password App is free to download, with in-app purchases available.

### Is 豆牙 free?

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

### Which has better reviews, 2FA Authenticator Password App or 豆牙?

豆牙 is rated higher. 2FA Authenticator Password App averages 4.0 out of 5 from 4 ratings, while 豆牙 averages 4.5 from 301 ratings.

### Do 2FA Authenticator Password App or 豆牙 have ads?

豆牙 shows ads; 2FA Authenticator Password App does not.

### Which is updated more often, 2FA Authenticator Password App or 豆牙?

2FA Authenticator Password App ships an update every 3 weeks, and 豆牙 daily. Most recently, 2FA Authenticator Password App was updated on September 7, 2026 and 豆牙 on September 24, 2026.

---

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