# 2FA Authenticator Password App vs Kelin中文版

The clearest difference is update cadence: Kelin中文版 at every 9 days against 2FA Authenticator Password App's every 3 weeks. Kelin中文版 also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support 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 Kelin中文版 sells 8 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

2FA Authenticator Password App ships an update every 3 weeks, Kelin中文版 every 9 days. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 2FA Authenticator Password App | Kelin中文版 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/2fa-authenticator-password-app/id6758049314/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 11 MB | 34 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FOODS SH.P.K.](https://appshunter.io/developer/1870568962) | [勃辉 李](https://appshunter.io/developer/6774746028) |

## 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 |


### Kelin中文版

[App page](https://appshunter.io/ios/app/kelin/id6776537972)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周订阅 | $6.99 | per 7 days |
| 月订阅 | $12.99 | per month |
| 年订阅 | $24.99 | per year |
| 星米档位1 | $3.99 | one-time |
| 星米消耗档位2 | $9.99 | one-time |
| 星米档位2 | $9.99 | one-time |
| 星米消耗档位3 | $19.99 | one-time |
| 星米档位3 | $19.99 | 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 Kelin中文版 free?

Kelin中文版 is free to download, with in-app purchases available.

### Do 2FA Authenticator Password App or Kelin中文版 have ads?

Neither 2FA Authenticator Password App nor Kelin中文版 shows ads.

### Which is updated more often, 2FA Authenticator Password App or Kelin中文版?

2FA Authenticator Password App ships an update every 3 weeks, and Kelin中文版 every 9 days. Most recently, 2FA Authenticator Password App was updated on September 7, 2026 and Kelin中文版 on September 20, 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.*