# CompTIA CASP+ Prep vs ISSEP Security Engineer Prep

The clearest difference is in-app purchases: ISSEP Security Engineer Prep at none against CompTIA CASP+ Prep's 3. CompTIA CASP+ Prep's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, 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. ISSEP Security Engineer Prep asks for nothing beyond the download.

CompTIA CASP+ Prep ships an update every 4 months, ISSEP Security Engineer Prep every 3 months. The most recent releases landed on September 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CompTIA CASP+ Prep | ISSEP Security Engineer Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 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 |


### ISSEP Security Engineer Prep

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

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

**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 ISSEP Security Engineer Prep free?

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

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

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

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

CompTIA CASP+ Prep ships an update every 4 months, and ISSEP Security Engineer Prep every 3 months. Most recently, CompTIA CASP+ Prep was updated on September 9, 2026 and ISSEP Security Engineer Prep on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*