# CDA vs 博学谷

The clearest difference is rating: 博学谷 at 5.0 against CDA's 3.0. 博学谷 also leads on in-app purchases (none vs 6). CDA's advantage is iOS requirement (11.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. CDA sells 6 one-off in-app purchases. 博学谷 asks for nothing beyond the download.

博学谷 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CDA ships an update monthly, 博学谷 every 5 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CDA | 博学谷 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/cda/id1069225260/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/it/id1241182369/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 198 MB | 185 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Guofuruhe Networking Technology Co., Ltd](https://appshunter.io/developer/547894322) | [Jiangsu Chuanzhiboke Education Technology Co.,ltd.](https://appshunter.io/developer/1241182368) |

## What reviewers say

### CDA

[App page](https://appshunter.io/ios/app/cda/id1069225260)

This app provides a comprehensive learning platform for aspiring data analysts. It offers official study materials, practice questions, expert interviews, and video courses to help users prepare for and pass the CDA certification exam. Join a community of learners to share insights and track your progress.

**Highlights:** Official CDA study materials, Extensive question bank with practice modes, Expert interviews and insights, Video lectures and courses, Exam news and updates, Community forums for learners

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 coin | $0.99 | one-time |
| 18 coin | $2.99 | one-time |
| 68 coin | $9.99 | one-time |
| 128 coin | $19.99 | one-time |
| 268 coin | $41.99 | one-time |
| 618 coin | $94.99 | one-time |


### 博学谷

[App page](https://appshunter.io/ios/app/it/id1241182369)

This platform offers online IT courses and training, leveraging a decade of offline teaching experience. It provides a comprehensive educational ecosystem with top instructors and optimized course content for various IT fields.

**Highlights:** Online IT courses, Top instructor-led classes, Optimized course content, Diverse IT specializations, Educational ecosystem, Career development focus

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CDA free?

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

### Is 博学谷 free?

博学谷 is free to download, with no in-app purchases.

### Which has better reviews, CDA or 博学谷?

博学谷 is rated higher. CDA averages 3.0 out of 5 from 1 ratings, while 博学谷 averages 5.0 from 1 ratings.

### Do CDA or 博学谷 have ads?

Neither CDA nor 博学谷 shows ads.

### Which is updated more often, CDA or 博学谷?

CDA ships an update monthly, and 博学谷 every 5 weeks. Most recently, CDA was updated on October 2, 2026 and 博学谷 on October 5, 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.*