# CDA vs w3cschool

The clearest difference is rating: w3cschool at 5.0 against CDA's 3.0. 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 and w3cschool sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

w3cschool holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

CDA ships an update monthly, w3cschool every 2 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | CDA | w3cschool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/cda/id1069225260/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/w3cschool/id1353326369/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 64.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 198 MB | 58 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) | [Xiamen Yidong Network Technology Company Limited](https://appshunter.io/developer/1476811365) |

## 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 |


### w3cschool

[App page](https://appshunter.io/ios/app/w3cschool/id1353326369)

This app offers interactive courses and extensive tutorials for over 1000 programming languages, designed for beginners. It allows users to practice coding and compile programs directly on their mobile devices, facilitating hands-on learning.

**Highlights:** Interactive learning courses, Over 1000 programming language tutorials, Mobile code writing and compilation, Hands-on coding practice, Beginner-friendly interface

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6学币 | $0.99 | one-time |
| 年费VIP会员 | $29.99 | one-time |
| 一年高级VIP | $34.99 | one-time |
| 半年高级VIP | $46.99 | one-time |
| 年费高级VIP | $59.99 | one-time |
| 1年VIP会员 | $69.99 | one-time |
| 半年全站通VIP会员 | $79.99 | one-time |
| 终身高级VIP-活动价 | $99.99 | one-time |
| 1年全站通VIP | $109.99 | one-time |
| 终身VIP | $299.99 | one-time |


## Frequently asked questions

### Is CDA free?

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

### Is w3cschool free?

w3cschool is free to download, with in-app purchases available.

### Which has better reviews, CDA or w3cschool?

w3cschool is rated higher. CDA averages 3.0 out of 5 from 1 ratings, while w3cschool averages 5.0 from 2 ratings.

### Do CDA or w3cschool have ads?

Neither CDA nor w3cschool shows ads.

### Which is updated more often, CDA or w3cschool?

CDA ships an update monthly, and w3cschool every 2 months. Most recently, CDA was updated on November 2, 2026 and w3cschool on November 2, 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.*