# OCI Knowledge Test vs SecurityX CAS

The clearest difference is device support: SecurityX CAS at 3 against OCI Knowledge Test's 1. SecurityX CAS also leads on iOS requirement (15.0 vs 17.2). On price, ads and in-app purchases there is nothing between them.

Both are free to download. OCI Knowledge Test sells 2 in-app purchases, starting at $11.99 per month and SecurityX CAS sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OCI Knowledge Test | SecurityX CAS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 9 MB | 44 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [EXAMCERT PTY LTD](https://appshunter.io/developer/1830664214) |

## What reviewers say

### OCI Knowledge Test

[App page](https://appshunter.io/ios/app/oci-knowledge-test/id6741455232)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $11.99 | per month |
| Lifetime version | $24.99 | one-time |


### SecurityX CAS

[App page](https://appshunter.io/ios/app/securityx-cas-005-exam-2026/id6779499358)

**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 OCI Knowledge Test free?

OCI Knowledge Test is free to download, with in-app purchases available.

### Is SecurityX CAS free?

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

### Do OCI Knowledge Test or SecurityX CAS have ads?

Neither OCI Knowledge Test nor SecurityX CAS shows ads.

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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.*