# 雷大大 vs 知旅云

The clearest difference is in-app purchases: 知旅云 at none against 雷大大's 6. 知旅云 also leads on iOS requirement (12.0 vs 15.0). 雷大大's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. 雷大大 sells 6 one-off in-app purchases. 知旅云 asks for nothing beyond the download.

雷大大 ships an update fortnightly, 知旅云 every 2 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 雷大大 | 知旅云 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (23 ratings)](https://appshunter.io/ios/app/id1361009552/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 186 MB | 72 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Snail Walk Education Technology Co., Ltd](https://appshunter.io/developer/1659339547) | [Jiangsu Feifan Intelligent Travel Information Technology Co Ltd](https://appshunter.io/developer/1601338147) |

## What reviewers say

### 雷大大

[App page](https://appshunter.io/ios/app/id1361009552)

Prepare for tourism and performance agent exams with comprehensive question banks, online courses, and study materials. Features include AI-powered learning tools, personalized study plans, and expert guidance to help you master exam content and achieve your career goals.

**Highlights:** Comprehensive question banks, Online courses and live lectures, AI-powered learning tools, Personalized study plans, Expert instructor guidance, Electronic textbooks with audio, Practice exams and mock interviews

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6学币 | $0.99 | one-time |
| 30学币 | $3.99 | one-time |
| 60学币 | $8.99 | one-time |
| 98学币 | $14.99 | one-time |
| 298学币 | $39.99 | one-time |
| 588学币 | $79.99 | one-time |


### 知旅云

[App page](https://appshunter.io/ios/app/id1601338025)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 雷大大 free?

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

### Is 知旅云 free?

知旅云 is free to download, with no in-app purchases.

### Do 雷大大 or 知旅云 have ads?

Neither 雷大大 nor 知旅云 shows ads.

### Which is updated more often, 雷大大 or 知旅云?

雷大大 ships an update fortnightly, and 知旅云 every 2 months. Most recently, 雷大大 was updated on October 29, 2026 and 知旅云 on October 25, 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.*