CTCAE 5 Pro vs ASCO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTCAE 5 Pro
This app helps review and take notes on CTCAE documents. It offers local data storage for privacy and premium features like version comparison and advanced note-taking with a subscription.
- Streamlined CTCAE Document Access
- Local data storage for enhanced privacy
- Version comparison tool
- Advanced chronological note-taking with hashtags
- Custom app creation from spreadsheets
- Flexible backup and archiving (XLSX, CSV)
Read full descriptionHide full description
CTCAE 5 Pro is designed to assist in the documentation, review, and reference of CTCAE-related information. This app is intended for informational support and is not designed for medical purposes such as diagnosis, clinical decision-making, or treatment recommendations. Users are responsible for verifying all information and making clinical decisions. ::::::::: Standard features (available to all users) :::::: - Streamlined CTCAE Document Access - Easily navigate CTCAE 5.0 documents using an intuitive interface. - Enhanced privacy with local data storage - protect your data by storing it locally instead of relying on cloud services, ensuring privacy and control. ::::::::: Premium Features (available with subscription) ::::::: - Version Comparison Tool - Easily compare different versions of CTCAE 5.0 and 4.03. - Advanced Notes feature - allows you to record CTCAEs in chronological order. You can also use hashtags and other features to efficiently organize and track notes for important information. - Custom App Creation Feature - Simply import a spreadsheet and convert it into a list app. No programming knowledge is required. - Flexible backup and archiving solution - easily back up and archive data in formats such as XLSX and CSV for versatility and accessibility. - More features are available in the Premium version. Note: With the Premium feature, a minimal number of files are automatically stored in a secure iCloud Drive to resume link information between files. This can be turned off based on user preference.
ASCO
Read full descriptionHide full description
The new ASCO App is a trusted tool for ASCO Members and the oncology community. Get a personalized feed of practice-changing science from JCO Journals tailored to your specialty, streamline your membership, and access professional development tools like ASCO-SEP®—anytime, anywhere. It’s an essential resource designed to save you time while fostering continuous engagement with the global oncology community.
Screenshots
Verdict
The clearest difference is in-app purchases: ASCO at none against CTCAE 5 Pro's 2. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CTCAE 5 Pro sells 2 in-app purchases, starting at $1.99 per month. ASCO asks for nothing beyond the download.
CTCAE 5 Pro ships an update every 5 weeks, ASCO every 3 weeks. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.
| Parameter | CTCAE 5 Pro | ASCO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (38 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 38 — better | — |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 — better | 16 |
| Further details — not scored | ||
| Size | 60 MB | 59 MB |
| Age rating | 17+ | 17+ |
| Developer | Koichiro Watanabe | American Society of Clinical Oncology |
In-app purchases
CTCAE 5 Pro
- Monthly subscription7 Days trial$1.991 Month
- Annual subscription7 Days trial$9.991 Year
ASCO
No in-app purchases









