# CTC vs NCCN Guidelines®

The clearest difference is price: NCCN Guidelines® at Free against CTC's $3.99. NCCN Guidelines® also leads on in-app purchases (none vs 1) and iOS requirement (13.1 vs 17.6). CTC's advantage is review sentiment (56% vs 13%). On update cadence, ads and device support there is nothing between them.

NCCN Guidelines® is free to download; CTC costs $3.99 up front. CTC sells 1 one-off in-app purchase. NCCN Guidelines® asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | CTC | NCCN Guidelines® |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[3.6 (24 ratings)](https://appshunter.io/ios/app/nccn-guidelines/id775500217/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | **55.6% of reviews** | 12.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 118 MB |
| Requires iOS | 17.6 | **13.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Arpacore B.V.](https://appshunter.io/developer/1441928570) | [National Comprehensive Cancer Network®](https://appshunter.io/developer/1168594705) |

## What reviewers say

### CTC

[App page](https://appshunter.io/ios/app/ctc-ae-plus/id349258523)

This medical reference app provides quick access to standardized adverse event criteria and grading scales for oncology research. It allows for efficient logging, tracking, and reporting of patient events, including performance scores and custom entries. Data is kept strictly on-device for privacy and compliance.

**Highlights:** CTCAE v4 and v5 reference, Performance score integration (Karnofsky, ECOG, Lansky), Advanced adverse event logger, Custom event creation, CSV data import/export, On-device data storage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Adverse Event Logger | $3.99 | one-time |


### 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


## Frequently asked questions

### Is CTC free?

CTC costs $3.99, and also offers in-app purchases.

### Is NCCN Guidelines® free?

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

### Do CTC or NCCN Guidelines® have ads?

Neither CTC nor NCCN Guidelines® shows ads.

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

CTC ships an update every 2 months, and NCCN Guidelines® every 2 months. Most recently, CTC was updated on October 1, 2026 and NCCN Guidelines® on October 4, 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.*