CTC vs CTCAE 5 Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTC
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.
- 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
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CTC-AE is a reference and educational tool for clinical researchers, oncologists, and healthcare professionals working with adverse event terminology and oncology performance status scales. The app provides fast, offline access to publicly available standards: • NCI Common Terminology Criteria for Adverse Events (CTC-AE v4.03 and v5.0) • ECOG Performance Status • Karnofsky Performance Status • Lansky Performance Status (pediatric) You can also keep personal reference notes about trials and patients, stored privately in your own iCloud account and synced across your Apple devices. Export your data as CSV at any time. KEY FEATURES • Complete CTC-AE v4.03 and v5.0 terminology with grades and definitions • Color-coded severity grades for quick visual reference • Multi-column layout optimized for iPad • Performance status scales (ECOG, Karnofsky, Lansky) • Personal trial and patient reference notes, stored privately in your own iCloud account and synced across iPhone, iPad, and Mac • CSV export • Optional Face ID / Touch ID protection • Optional name scrambling for on-screen privacy PRIVACY Your reference notes live in your private iCloud container. Arpacore B.V. has no access to this data, and no information is shared with any third party. INTENDED USE CTC-AE is intended for educational and reference purposes only. It is not a medical device. It is not intended to diagnose, prevent, monitor, predict, prognose, or treat any disease, injury, or disability, and does not provide medical advice. All clinical decisions remain the sole responsibility of qualified healthcare professionals. The CTC-AE terminology is published by the U.S. National Cancer Institute and is reproduced here for reference. This app is not affiliated with, endorsed by, or sponsored by the NCI or NIH. CTC-AE is also available natively on Mac, with full sync between your devices.
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)
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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.
Screenshots
Verdict
The clearest difference is review sentiment: CTC at 56% against CTCAE 5 Pro's 0%. CTCAE 5 Pro's advantage is price (Free vs $3.99) and iOS requirement (15.5 vs 17.6). On update cadence, ads, in-app purchases 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
CTCAE 5 Pro is free to download; CTC costs $3.99 up front. CTC sells 1 one-off in-app purchase and CTCAE 5 Pro sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
CTC ships an update every 2 months, CTCAE 5 Pro every 5 weeks. The most recent releases landed on September 13, 2026 and September 22, 2026 respectively.
| Parameter | CTC | CTCAE 5 Pro |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 4.8 (38 ratings) — better |
| Positive reviews | 55.6% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 38 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 2 MB | 60 MB |
| Age rating | 17+ | 17+ |
| Developer | Arpacore B.V. | Koichiro Watanabe |
Customer experience
CTC
CTCAE 5 Pro
In-app purchases
CTC
- Adverse Event Logger$3.99
CTCAE 5 Pro
- Monthly subscription7 Days trial$1.991 Month
- Annual subscription7 Days trial$9.991 Year









