Comparison

CTC vs Shared Investigator Platform

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

Head to head
About

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.

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
Read full description

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.

About

Shared Investigator Platform

This mobile application allows clinical trial site users to manage their actions on the Shared Investigator Platform. It facilitates easy login, E-signing, reviewing pending actions, accepting study invitations, and managing study staff. Users can also access study documents, complete tasks, and receive important notifications.

Highlights
  • User-friendly interface
  • E-sign functionality
  • Biometric authentication
  • Review pending actions
  • Accept study invitations
  • Manage study staff
  • Access study documents
Read full description

The Shared Investigator Platform (Cognizant SIP) Mobile App features a user friendly interface to navigate and manage your actions on the Shared Investigator Platform. With this app, site users can easily login and E-sign using their existing SIP credentials and enable biometric authentication to simplify the subsequent login and E-signature processes. This app offers an easy review of the pending actions, accept study invitations, View and generate FDA Form1572, view the study news, acknowledge safety notifications, add and manage study site staff, view study documents, complete Document Exchange tasks published by your sponsor organizations and receive push notifications of latest study news published and assigned tasks.

Screenshots

CTC4 screens
Shared Investigator Platform4 screens

Verdict

The call

The clearest difference is price: Shared Investigator Platform at Free against CTC's $3.99. Shared Investigator Platform also leads on review sentiment (100% vs 56%) and in-app purchases (none vs 1). CTC's advantage is update cadence (every 2 months vs every 6 months). On 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

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

UpkeepUpdate frequency

CTC ships an update every 2 months, Shared Investigator Platform every 6 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
CTC versus Shared Investigator Platform: the parameters behind the verdict, then further details
ParameterCTCShared Investigator Platform
Price$3.99Free — better
Rating—5.0 (5 ratings) — better
Positive reviews55.6% of reviews100.0% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.615.6 — better
Further details — not scored
Size2 MB44 MB
Age rating17+17+
DeveloperArpacore B.V.Cognizant Technology Solutions

Customer experience

CTC

Written reviews9 reviews
Positive55.6%
Neutral33.3%
Negative11.1%

Shared Investigator Platform

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

CTC

One-time1
  • Adverse Event Logger$3.99
None

Shared Investigator Platform

No in-app purchases

Questions

Is CTC free?
CTC costs $3.99, and also offers in-app purchases.
Is Shared Investigator Platform free?
Shared Investigator Platform is free to download, with no in-app purchases.
Do CTC or Shared Investigator Platform have ads?
Neither CTC nor Shared Investigator Platform shows ads.
Which is updated more often, CTC or Shared Investigator Platform?
CTC ships an update every 2 months, and Shared Investigator Platform every 6 months. Most recently, CTC was updated on October 24, 2026 and Shared Investigator Platform on October 16, 2026.

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