# Kidney2Go vs NNCC CNN Exam by Rocket Prep

The clearest difference is monetization model: NNCC CNN Exam by Rocket Prep at free with in-app purchases against Kidney2Go's subscription. Kidney2Go's advantage is update cadence (every 2 weeks vs every 7 months) and rating (5.0 vs 4.7). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Kidney2Go sells 1 in-app purchase, starting at $49.99 per year and NNCC CNN Exam by Rocket Prep sells 6 in-app purchases, starting at $12.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Kidney2Go holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Kidney2Go ships an update every 2 weeks, NNCC CNN Exam by Rocket Prep every 7 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kidney2Go | NNCC CNN Exam by Rocket Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/kidney2go/id6464635859/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/nncc-cnn-exam-by-rocket-prep/id6749759596/reviews) |
| Number of ratings | 3 | 3 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 34 MB | 46 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Portable Information Solutions, LLC](https://appshunter.io/developer/1812632881) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### Kidney2Go

[App page](https://appshunter.io/ios/app/kidney2go/id6464635859)

A comprehensive medical handbook for healthcare professionals, offering concise diagnostic, evaluation, and treatment information for kidney diseases. It includes practical tools like calculators and clinical images, with content regularly updated from the cloud.

**Highlights:** Kidney disease diagnosis, evaluation, and treatment, Kidney transplant management, Dialysis technical information, Key citations for each topic, Clinical photographs and calculators, Cloud-based content updates, Search functionality and favorites

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kidney2Go Annual Subscription | $49.99 | per year |


### NNCC CNN Exam by Rocket Prep

[App page](https://appshunter.io/ios/app/nncc-cnn-exam-by-rocket-prep/id6749759596)

Prepare for the NNCC CNN certification exam with this mobile study resource. It offers a comprehensive question bank, detailed explanations, customizable study modes, and progress tracking to help nephrology nurses advance their careers. Access expert-led review materials and active learning tools for effective preparation.

**Highlights:** Extensive question bank by experts, Detailed explanations and references, Customizable study modes, Progress tracking and analytics, Expert-led review resources, Active learning tools, Offline access and cross-device sync

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CNN Weekly Full Access | $12.99 | per 7 days |
| CNN Monthly Full Access | $32.99 | per month |
| CNN Monthly Full Access | $32.99 | per month |
| NNCC_CNN_mock_tries_1 | $4.99 | one-time |
| NNCC_CNN_mock_tries_3 | $9.99 | one-time |
| NNCC_CNN_mock_tries_5 | $14.99 | one-time |


## Frequently asked questions

### Is Kidney2Go free?

Kidney2Go is free to download, with in-app purchases available.

### Is NNCC CNN Exam by Rocket Prep free?

NNCC CNN Exam by Rocket Prep is free to download, with in-app purchases available.

### Which has better reviews, Kidney2Go or NNCC CNN Exam by Rocket Prep?

Kidney2Go is rated higher. Kidney2Go averages 5.0 out of 5 from 3 ratings, while NNCC CNN Exam by Rocket Prep averages 4.7 from 3 ratings.

### Do Kidney2Go or NNCC CNN Exam by Rocket Prep have ads?

Neither Kidney2Go nor NNCC CNN Exam by Rocket Prep shows ads.

### Which is updated more often, Kidney2Go or NNCC CNN Exam by Rocket Prep?

Kidney2Go ships an update every 2 weeks, and NNCC CNN Exam by Rocket Prep every 7 months. Most recently, Kidney2Go was updated on October 21, 2026 and NNCC CNN Exam by Rocket Prep on October 24, 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.*