# ISC2 Official Exam Prep vs uCertifyPrep CISSP

The clearest difference is update cadence: ISC2 Official Exam Prep at every 3 weeks against uCertifyPrep CISSP's every 4 months. On price, ads, in-app purchases and device support 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 uCertifyPrep CISSP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ISC2 Official Exam Prep ships an update every 3 weeks, uCertifyPrep CISSP every 4 months. The most recent releases landed on October 29, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ISC2 Official Exam Prep | uCertifyPrep CISSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (443 ratings)](https://appshunter.io/ios/app/isc2-official-exam-prep/id1555533017/reviews)** | — |
| Number of ratings | **443** | — |
| Positive reviews | 69.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 121 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [learnZapp](https://appshunter.io/developer/435622455) | [uCertify.com](https://appshunter.io/developer/1130631061) |

## 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 |


### uCertifyPrep CISSP

[App page](https://appshunter.io/ios/app/ucertifyprep-cissp/id1611872853)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| uCertifyPrep CISSP | $49.99 | one-time |


## Frequently asked questions

### Is ISC2 Official Exam Prep free?

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

### Is uCertifyPrep CISSP free?

uCertifyPrep CISSP is free to download, with in-app purchases available.

### Do ISC2 Official Exam Prep or uCertifyPrep CISSP have ads?

Neither ISC2 Official Exam Prep nor uCertifyPrep CISSP shows ads.

### Which is updated more often, ISC2 Official Exam Prep or uCertifyPrep CISSP?

ISC2 Official Exam Prep ships an update every 3 weeks, and uCertifyPrep CISSP every 4 months. Most recently, ISC2 Official Exam Prep was updated on October 29, 2026 and uCertifyPrep CISSP on October 1, 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.*