# CompTIA CASP+ Prep vs ISC2 ISSEP Security Engineer

The clearest difference is in-app purchases: ISC2 ISSEP Security Engineer at none against CompTIA CASP+ Prep's 3. ISC2 ISSEP Security Engineer also leads on update cadence (every 2 months vs every 4 months). CompTIA CASP+ Prep's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. CompTIA CASP+ Prep sells 3 in-app purchases, starting at $4.99 per month. ISC2 ISSEP Security Engineer asks for nothing beyond the download.

CompTIA CASP+ Prep ships an update every 4 months, ISC2 ISSEP Security Engineer every 2 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | CompTIA CASP+ Prep | ISC2 ISSEP Security Engineer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 58 MB | 27 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [学勇 张](https://appshunter.io/developer/590340880) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### CompTIA CASP+ Prep

[App page](https://appshunter.io/ios/app/comptia-casp-plus-prep/id6479339955)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $4.99 | per month |
| 3 MONTHS | $9.99 | per 3 months |
| YEARLY | $19.99 | per year |


### ISC2 ISSEP Security Engineer

[App page](https://appshunter.io/ios/app/isc2-issep-security-engineer/id6759794872)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CompTIA CASP+ Prep free?

CompTIA CASP+ Prep is free to download, with in-app purchases available.

### Is ISC2 ISSEP Security Engineer free?

ISC2 ISSEP Security Engineer is free to download, with no in-app purchases.

### Do CompTIA CASP+ Prep or ISC2 ISSEP Security Engineer have ads?

Neither CompTIA CASP+ Prep nor ISC2 ISSEP Security Engineer shows ads.

### Which is updated more often, CompTIA CASP+ Prep or ISC2 ISSEP Security Engineer?

CompTIA CASP+ Prep ships an update every 4 months, and ISC2 ISSEP Security Engineer every 2 months. Most recently, CompTIA CASP+ Prep was updated on September 9, 2026 and ISC2 ISSEP Security Engineer on September 20, 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.*