# NCCN Guidelines® vs Prezerve™

The clearest difference is rating: Prezerve™ at 5.0 against NCCN Guidelines®'s 3.6. NCCN Guidelines®'s advantage is update cadence (every 2 months vs every 4 months) and ratings volume (24 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Prezerve™ holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: NCCN Guidelines® has 24 ratings behind it against 4, so its average is the more settled of the two.

NCCN Guidelines® ships an update every 2 months, Prezerve™ every 4 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | NCCN Guidelines® | Prezerve™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (24 ratings)](https://appshunter.io/ios/app/nccn-guidelines/id775500217/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/prezerve/id6747895617/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 118 MB | 52 MB |
| Requires iOS | **13.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [National Comprehensive Cancer Network®](https://appshunter.io/developer/1168594705) | [Incyte Corporation](https://appshunter.io/developer/1398082616) |

## What reviewers say

### NCCN Guidelines®

[App page](https://appshunter.io/ios/app/nccn-guidelines/id775500217)

This app provides healthcare professionals with convenient access to comprehensive clinical practice guidelines for oncology. It aims to improve the quality and effectiveness of cancer care by offering evidence-based recommendations for diagnosis, treatment, and supportive services.

**Highlights:** Virtual Library of NCCN Guidelines, Oncology clinical practice guidelines, Evidence-based recommendations, Supports cancer care decision-making, Covers 97% of US cancer cases

**Features:** Vision Pro support

**In-app purchases:** none


### Prezerve™

[App page](https://appshunter.io/ios/app/prezerve/id6747895617)

This app helps bone-marrow transplant patients track and share post-transplant symptoms with their care team. It allows for real-time updates with photos and data trends, and provides an educational library on post-transplant life. Designed for adults 18 and older.

**Highlights:** Track symptoms on specific body areas, Share photos and real-time updates, Keep care teams informed with reports, Visualize symptom severity and frequency, Access post-transplant educational articles

**In-app purchases:** none


## Frequently asked questions

### Is NCCN Guidelines® free?

NCCN Guidelines® is free to download, with no in-app purchases.

### Is Prezerve™ free?

Prezerve™ is free to download, with no in-app purchases.

### Which has better reviews, NCCN Guidelines® or Prezerve™?

Prezerve™ is rated higher. NCCN Guidelines® averages 3.6 out of 5 from 24 ratings, while Prezerve™ averages 5.0 from 4 ratings.

### Do NCCN Guidelines® or Prezerve™ have ads?

Neither NCCN Guidelines® nor Prezerve™ shows ads.

### Which is updated more often, NCCN Guidelines® or Prezerve™?

NCCN Guidelines® ships an update every 2 months, and Prezerve™ every 4 months. Most recently, NCCN Guidelines® was updated on October 14, 2026 and Prezerve™ 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.*