# ISC2 Official Exam Prep vs CSSLP Exam Test Prep 2026

The clearest difference is rating: CSSLP Exam Test Prep 2026 at 5.0 against ISC2 Official Exam Prep's 4.4. ISC2 Official Exam Prep's advantage is update cadence (every 3 weeks vs every 6 months) and ratings volume (446 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ISC2 Official Exam Prep sells 5 in-app purchases, starting at $5.99 per 7 days and CSSLP Exam Test Prep 2026 sells 5 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CSSLP Exam Test Prep 2026 holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: ISC2 Official Exam Prep has 446 ratings behind it against 1, so its average is the more settled of the two.

ISC2 Official Exam Prep ships an update every 3 weeks, CSSLP Exam Test Prep 2026 every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | ISC2 Official Exam Prep | CSSLP Exam Test Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (446 ratings)](https://appshunter.io/ios/app/isc2-official-exam-prep/id1555533017/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/csslp-exam-test-prep-2026/id6471139255/reviews)** |
| Number of ratings | **446** | 1 |
| Positive reviews | 69.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 91 MB | 54 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [learnZapp](https://appshunter.io/developer/435622455) | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) |

## What reviewers say

### ISC2 Official Exam Prep

[App page](https://appshunter.io/ios/app/isc2-official-exam-prep/id1555533017)

Prepare for CISSP, CCSP, and SSCP certification exams with official study materials. Access thousands of questions, flashcards, and glossary terms. Track your progress and build custom practice tests to identify and improve weak areas.

**Highlights:** Thousands of exam-specific questions, Detailed explanations, Flashcards and glossary, Readiness score, Custom test builder, Progress tracker, Mock exams

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access - 1 Week | $5.99 | per 7 days |
| All Access - 1 Month | $19.99 | per month |
| All Access - 3 Months | $49.99 | per 3 months |
| All Access - 6 Months | $79.99 | per 6 months |
| All Access - 1 Year | $99.99 | per year |


### CSSLP Exam Test Prep 2026

[App page](https://appshunter.io/ios/app/csslp-exam-test-prep-2026/id6471139255)

Prepare for the Certified Secure Software Lifecycle Professional (CSSLP) certification exam with expert-crafted practice questions and realistic simulations. Track your progress with detailed analytics and benefit from regular updates to ensure you have the most relevant study material.

**Highlights:** Expertly crafted practice questions, Realistic exam simulations, Detailed explanations for answers, Personalized study plans, Progress tracking and analytics, Regular content updates

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $8.99 | per 7 days |
| Monthly Subscription | $24.99 | per month |
| CSSLP Monthly Full Access | $24.99 | per month |
| CSSLP Quarterly Full Access | $55.99 | per 3 months |
| CSSLP Quarterly Full Access | $55.99 | per 3 months |


## Frequently asked questions

### Is ISC2 Official Exam Prep free?

ISC2 Official Exam Prep is free to download, with in-app purchases available.

### Is CSSLP Exam Test Prep 2026 free?

CSSLP Exam Test Prep 2026 is free to download, with in-app purchases available.

### Which has better reviews, ISC2 Official Exam Prep or CSSLP Exam Test Prep 2026?

CSSLP Exam Test Prep 2026 is rated higher. ISC2 Official Exam Prep averages 4.4 out of 5 from 446 ratings, while CSSLP Exam Test Prep 2026 averages 5.0 from 1 ratings.

### Do ISC2 Official Exam Prep or CSSLP Exam Test Prep 2026 have ads?

Neither ISC2 Official Exam Prep nor CSSLP Exam Test Prep 2026 shows ads.

### Which is updated more often, ISC2 Official Exam Prep or CSSLP Exam Test Prep 2026?

ISC2 Official Exam Prep ships an update every 3 weeks, and CSSLP Exam Test Prep 2026 every 6 months. Most recently, ISC2 Official Exam Prep was updated on November 3, 2026 and CSSLP Exam Test Prep 2026 on November 3, 2026.

---

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