Comparison

Thoracic Lymph Node Map vs CTisus iPearls

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

Head to head
About

Thoracic Lymph Node Map

This clinical decision-support tool helps healthcare professionals evaluate and locate thoracic lymph node stations on CT scans. It offers a color-coded map with definitions, N-category information, and sampling options, adapted from IASLC guidelines.

Highlights
  • Color-coded IASLC lymph node map
  • Anatomic definitions and N-category info
  • CT-based station overlays
  • Station detail cards
  • Common issues insights
  • Offline access
Features
Read full description

Thoracic Lymph Node Map is a clinical decision-support reference that streamlines the evaluation and localization of thoracic lymph node stations on CT. Adapted from the International Association for the Study of Lung Cancer (IASLC) lung cancer project, the app provides a clear, color-coded map of mediastinal, low cervical, and hilar lymph node stations with concise anatomic definitions, N-category information, and sampling options—right at the point of care. Version 4.0 has been rebuilt from the ground up and optimized for iOS 26, featuring a modern, responsive interface designed for radiologists, pulmonologists, oncologists, surgeons, and any health care professional interpreting chest imaging. The app is provided entirely free of charge, with no ads, no subscriptions, and no in-app purchases. --- Key Features IASLC Thoracic Lymph Node Map Integration • Color-coded map adapted from the IASLC lung cancer project • Clear station labels (1–14) with concise anatomic definitions CT-Based Station Overlays • Navigate representative axial CT images of the thorax • Visualize how each lymph node station relates to key mediastinal structures Station Detail Cards • N-category classification (N1/N2/N3) for every station • Common sampling options at a glance • Precise upper, lower, and lateral/anterior/posterior boundaries Common Issues Insights • High-yield clarifications for frequently confused stations • Guidance on distinguishing 4 vs 10, 1 vs 2/3, and more • Aid in aligning CT interpretation with IASLC definitions Enhanced Readability • Support for Dark Mode and Dynamic Type • Clean, distraction-free layout optimized for both iPhone and iPad Offline Access • All data available offline—no login, no network, no server required Requirements • iPhone or iPad running iOS / iPadOS 16.6 or later • Fully optimized for iOS 26 Pricing Thoracic Lymph Node Map is developed and maintained by radiologists. It is provided as a free resource for the medical community, with no advertisements and no subscription required. Medical Disclaimer: This app is for informational purposes only and is not a substitute for professional medical advice. In addition to using this app, always consult a qualified healthcare provider for diagnosis and treatment decisions. Privacy Policy: https://radiologiq.squarespace.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CTisus iPearls

This app provides diagnostic radiologists with valuable insights and facts, known as "pearls," to aid in correct diagnoses and understanding of radiologic images. It organizes these pearls across 28 popular categories and includes a search feature for easy access to thousands of pieces of knowledge.

Highlights
  • Diagnostic radiology pearls
  • Thousands of insights
  • 28 popular categories
  • Search functionality
  • Radiologic image understanding
Features
Read full description

To most people, pearls are considered precious gems, and are among the most popular jewels in the world. It should not be surprising that physicians consider a priceless bit of knowledge about their specialty a "pearl". For the diagnostic radiologist, a pearl may be the formerly elusive insight or fact that paves the way for a correct diagnosis or deeper understanding of a radiologic image. A traditional component of radiology education, pearls are considered on a par with elements such as the teaching file or lecture series. Pearls have also been a mainstay of www.CTISUS.com, where we post approximately 150 to 300 new pearls each month. In this app, we present pearls across 29 of the most popular categories derived from the literature or our imaging experiences. The app also provides a search feature to enhance user interactivity. We look forward to sharing these new insights with you on the latest version where we present literally thousands of pearls.

Screenshots

Thoracic Lymph Node Map4 screens
CTisus iPearls4 screens

Verdict

The call

The clearest difference is rating: Thoracic Lymph Node Map at 4.8 against CTisus iPearls's 4.6. On price, review sentiment, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Thoracic Lymph Node Map holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 25 and 39 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Thoracic Lymph Node Map ships an update every 7 months, CTisus iPearls every 6 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 9 level
Thoracic Lymph Node Map versus CTisus iPearls: the parameters behind the verdict, then further details
ParameterThoracic Lymph Node MapCTisus iPearls
PriceFreeFree
Rating4.8 (25 ratings) — better4.6 (39 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2539 — better
Update frequencyEvery 7 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.6 — better
Further details — not scored
Size128 MB137 MB
Age rating12+17+
DeveloperRADIOLOGiQ, LLCElliot Fishman

Customer experience

Thoracic Lymph Node Map

All ratings25 ratings
Positive96.0%
Neutral0.0%
Negative4.0%
Written reviews18 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CTisus iPearls

All ratings39 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Thoracic Lymph Node Map

No in-app purchases

None

CTisus iPearls

No in-app purchases

Questions

Is Thoracic Lymph Node Map free?
Thoracic Lymph Node Map is free to download, with no in-app purchases.
Is CTisus iPearls free?
CTisus iPearls is free to download, with no in-app purchases.
Which has better reviews, Thoracic Lymph Node Map or CTisus iPearls?
Thoracic Lymph Node Map is rated higher. Thoracic Lymph Node Map averages 4.8 out of 5 from 25 ratings, while CTisus iPearls averages 4.6 from 39 ratings.
Do Thoracic Lymph Node Map or CTisus iPearls have ads?
Neither Thoracic Lymph Node Map nor CTisus iPearls shows ads.
Which is updated more often, Thoracic Lymph Node Map or CTisus iPearls?
Thoracic Lymph Node Map ships an update every 7 months, and CTisus iPearls every 6 months. Most recently, Thoracic Lymph Node Map was updated on October 14, 2026 and CTisus iPearls on October 8, 2026.

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