# CompTIA Linux Exam Simulator vs Docker Certified Associate DCA

The clearest difference is update cadence: Docker Certified Associate DCA at every 3 weeks against CompTIA Linux Exam Simulator's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CompTIA Linux Exam Simulator sells 3 in-app purchases, starting at $7.99 per month and Docker Certified Associate DCA sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CompTIA Linux Exam Simulator ships an update every 4 months, Docker Certified Associate DCA every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CompTIA Linux Exam Simulator | Docker Certified Associate DCA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 93 MB | 45 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Duy Khanh](https://appshunter.io/developer/1345775745) | [EXAMCERT PTY LTD](https://appshunter.io/developer/1830664214) |

## What reviewers say

### CompTIA Linux Exam Simulator

[App page](https://appshunter.io/ios/app/comptia-linux-exam-simulator/id6501984134)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $7.99 | per month |
| Premium Quarterly | $14.99 | per 3 months |
| Premium Yearly | $49.99 | per year |


### Docker Certified Associate DCA

[App page](https://appshunter.io/ios/app/docker-certified-associate-dca/id6757731496)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 AI Credits | $1.99 | one-time |
| Unlock Premium | $5.99 | one-time |


## Frequently asked questions

### Is CompTIA Linux Exam Simulator free?

CompTIA Linux Exam Simulator is free to download, with in-app purchases available.

### Is Docker Certified Associate DCA free?

Docker Certified Associate DCA is free to download, with in-app purchases available.

### Do CompTIA Linux Exam Simulator or Docker Certified Associate DCA have ads?

Neither CompTIA Linux Exam Simulator nor Docker Certified Associate DCA shows ads.

### Which is updated more often, CompTIA Linux Exam Simulator or Docker Certified Associate DCA?

CompTIA Linux Exam Simulator ships an update every 4 months, and Docker Certified Associate DCA every 3 weeks. Most recently, CompTIA Linux Exam Simulator was updated on October 30, 2026 and Docker Certified Associate DCA on October 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.*