Comparison

CTCAE 6 Pro vs ASCO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CTCAE 6 Pro

Easily review and annotate medical toxicity criteria. Bookmark adverse events, search keywords, and organize entries chronologically. Offers local data storage and optional premium features for advanced note-taking and data export.

Highlights
  • Quick CTCAE 6.0 content access
  • Unlimited adverse event bookmarking
  • Keyword search with highlighting
  • Local data storage
  • Version comparison (5.0 ⇄ 6.0)
  • Smart notes and timeline management
  • Spreadsheet to custom list app conversion
Features
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CTCAE 6 Pro helps you review and take notes on CTCAE content with ease. It is not intended for diagnosis, clinical decisions, or treatment planning. Standard Features: • Quick CTCAE Access: Browse CTCAE 6.0 content with ease • Unlimited Flags: Bookmark AEs without limits • Search with Highlighting: Easily spot keywords in context • Local Data Storage: Keep your data secure and private on your device Premium Features (Subscription Users): • Version Comparison (5.0 ⇄ 6.0) • Smart Notes: Organize CTCAE entries chronologically, use hashtags, and more • Spreadsheet to App: Turn your spreadsheet into a custom list app—no coding required • Easy Backups: Export to XLSX or CSV for flexibility • Optimized Printing & Sharing: Export HTML files for instant viewing on any desktop or laptop, with easy letter-size printing • Timeline Management: Track and log AEs on a day-by-day basis

About

ASCO

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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

CTCAE 6 Pro4 screens
ASCO4 screens

Verdict

The call

The clearest difference is in-app purchases: ASCO at none against CTCAE 6 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CTCAE 6 Pro sells 2 in-app purchases, starting at $1.99 per month. ASCO asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard1 real difference · 8 level
CTCAE 6 Pro versus ASCO: the parameters behind the verdict, then further details
ParameterCTCAE 6 ProASCO
PriceFreeFree
Rating5.0 (8 ratings) — better—
Number of ratings8 — better—
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.6 — better16
Further details — not scored
Size87 MB59 MB
Age rating17+17+
DeveloperKoichiro WatanabeAmerican Society of Clinical Oncology

In-app purchases

2 purchases

CTCAE 6 Pro

Subscriptions2
  • Premium Plan – Monthly7 Days trial$1.991 Month
  • Premium Plan – Annual7 Days trial$9.991 Year
None

ASCO

No in-app purchases

Questions

Is CTCAE 6 Pro free?
CTCAE 6 Pro is free to download, with in-app purchases available.
Is ASCO free?
ASCO is free to download, with no in-app purchases.
Do CTCAE 6 Pro or ASCO have ads?
Neither CTCAE 6 Pro nor ASCO shows ads.
Which is updated more often, CTCAE 6 Pro or ASCO?
CTCAE 6 Pro ships an update monthly, and ASCO monthly. Most recently, CTCAE 6 Pro was updated on September 25, 2026 and ASCO on September 23, 2026.

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