# CDA vs 光环

The clearest difference is rating: 光环 at 5.0 against CDA's 3.0. 光环 also leads on ratings volume (3 vs 1) and iOS requirement (9.0 vs 11.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. CDA sells 6 one-off in-app purchases and 光环 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

光环 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CDA | 光环 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/cda/id1069225260/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/npdp/id1443281485/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 198 MB | 130 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Guofuruhe Networking Technology Co., Ltd](https://appshunter.io/developer/547894322) | [Aura International Education Technology Co., Ltd.](https://appshunter.io/developer/1548890703) |

## 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 |


### 光环

[App page](https://appshunter.io/ios/app/npdp/id1443281485)

This app offers a comprehensive online learning platform for aspiring innovators, featuring expert-led courses in project management, AI, and data science. It combines theoretical knowledge with practical case studies and community support to help users advance their careers.

**Highlights:** Expert-led courses, Project management certifications, AI and data science modules, Practical case studies, Community Q&A, Weekly updates

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 18光环币 | $2.99 | one-time |
| 68光环币 | $9.99 | one-time |
| 108光环币 | $14.99 | one-time |
| 188光环币 | $29.99 | one-time |
| 698光环币 | $99.99 | one-time |
| 1198光环币 | $179.99 | one-time |


## Frequently asked questions

### Is CDA free?

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

### Is 光环 free?

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

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

光环 is rated higher. CDA averages 3.0 out of 5 from 1 ratings, while 光环 averages 5.0 from 3 ratings.

### Do CDA or 光环 have ads?

Neither CDA nor 光环 shows ads.

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

CDA ships an update monthly, and 光环 monthly. Most recently, CDA was updated on October 2, 2026 and 光环 on September 28, 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.*