# ReviewNprep vs uCertifyPrep CSSLP

The clearest difference is update cadence: uCertifyPrep CSSLP at every 3 months against ReviewNprep's every 18 months. ReviewNprep's advantage is iOS requirement (12.0 vs 14.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. ReviewNprep sells 10 one-off in-app purchases and uCertifyPrep CSSLP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReviewNprep ships an update every 18 months, uCertifyPrep CSSLP every 3 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ReviewNprep | uCertifyPrep CSSLP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/ucertifyprep-csslp/id1611743464/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 77 MB | 121 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ReviewNPrep LLC](https://appshunter.io/developer/1534340406) | [uCertify.com](https://appshunter.io/developer/1130631061) |

## What reviewers say

### ReviewNprep

[App page](https://appshunter.io/ios/app/reviewnprep/id1534340104)

Prepare for a wide range of professional certifications with expert guidance and community insights. Access detailed reviews, tailor your study plan, and connect with other users. New video courses are now available to enhance your learning experience.

**Highlights:** Certification preparation for AWS, Azure, GCP, PMP, and more, Detailed community reviews and insights, Personalized study plan creation, Community forums and blogs, Video courses for visual learning, Expert guidance from certified users

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RNP Course 1-5 | $4.99 | one-time |
| RNP Course 5-10 | $9.99 | one-time |
| RNP Course 10-15 | $14.99 | one-time |
| RNP Course 15-20 | $19.99 | one-time |
| RNP Course 20-25 | $24.99 | one-time |
| RNP Course 25-30 | $29.99 | one-time |
| RNP Course 30-35 | $34.99 | one-time |
| RNP Course 35-40 | $39.99 | one-time |
| RNP Course 40-45 | $44.99 | one-time |
| RNP Course 45-50 | $49.99 | one-time |


### uCertifyPrep CSSLP

[App page](https://appshunter.io/ios/app/ucertifyprep-csslp/id1611743464)

Prepare for the CSSLP certification with a full-length practice test designed to simulate real exam conditions. Study security design principles, threat modeling, and more on your mobile device. Features gamified learning and feedback to enhance test-taking skills.

**Highlights:** Simulates real exam conditions, Covers security design principles and threat modeling, Gamified learning with randomization and spaced repetition, Provides feedback for skill improvement, Accessible on mobile devices, Includes 50+ item types

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is ReviewNprep free?

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

### Is uCertifyPrep CSSLP free?

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

### Do ReviewNprep or uCertifyPrep CSSLP have ads?

Neither ReviewNprep nor uCertifyPrep CSSLP shows ads.

### Which is updated more often, ReviewNprep or uCertifyPrep CSSLP?

ReviewNprep ships an update every 18 months, and uCertifyPrep CSSLP every 3 months. Most recently, ReviewNprep was updated on October 16, 2026 and uCertifyPrep CSSLP on October 13, 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.*