# 蓝天天气预报 HD vs 2FA Authenticator

The clearest difference is in-app purchases: 蓝天天气预报 HD at none against 2FA Authenticator's 4. 蓝天天气预报 HD also leads on iOS requirement (8.0 vs 15.0). 2FA Authenticator's advantage is update cadence (every 6 days vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. 2FA Authenticator sells 4 in-app purchases, starting at $4.99 per 7 days. 蓝天天气预报 HD asks for nothing beyond the download.

蓝天天气预报 HD ships an update every 31 months, 2FA Authenticator every 6 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 蓝天天气预报 HD | 2FA Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (77 ratings)](https://appshunter.io/ios/app/2fa-authenticator-mfaotpauth/id6503233227/reviews)** |
| Number of ratings | — | **77** |
| Positive reviews | — | 71.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 38 MB | 32 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UTA Information & technology Co., Ltd.](https://appshunter.io/developer/635229974) | [朝虹 陈](https://appshunter.io/developer/1678918725) |

## What reviewers say

### 蓝天天气预报 HD

[App page](https://appshunter.io/ios/app/hd/id880931422)

**Features:** macOS Compatibility

**In-app purchases:** none


### 2FA Authenticator

[App page](https://appshunter.io/ios/app/2fa-authenticator-mfaotpauth/id6503233227)

This app provides robust digital security for your online accounts using end-to-end encryption. It simplifies adding accounts, securely backs up and syncs your data, and offers offline password generation. Manage all your passwords and generate strong ones with ease.

**Highlights:** Effortless account addition via QR code, Secure data backup and cross-device sync, Offline one-time password generation, Password manager for central organization, Customizable strong password generator, Face ID and Touch ID secure access

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Weekly | $4.99 | per 7 days |
| Authenticator - Weekly | $4.99 | per 7 days |
| Authenticator Yearly | $39.99 | per year |
| Authenticator Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is 蓝天天气预报 HD free?

蓝天天气预报 HD is free to download, with no in-app purchases.

### Is 2FA Authenticator free?

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

### Do 蓝天天气预报 HD or 2FA Authenticator have ads?

Neither 蓝天天气预报 HD nor 2FA Authenticator shows ads.

### Which is updated more often, 蓝天天气预报 HD or 2FA Authenticator?

蓝天天气预报 HD ships an update every 31 months, and 2FA Authenticator every 6 days. Most recently, 蓝天天气预报 HD was updated on October 24, 2026 and 2FA Authenticator on October 30, 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.*