Thoracic Lymph Node Map vs ContrastRx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Color-coded IASLC lymph node map
- Anatomic definitions and N-category info
- CT-based station overlays
- Station detail cards
- Common issues insights
- Offline access
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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/
ContrastRx
Provides quick access to treatment regimens for life-threatening reactions to radiographic contrast agents. Includes clinical descriptions, visual examples, and treatment protocols, along with helpful calculators and information on nephrogenic systemic fibrosis.
- Treatment regimens for contrast reactions
- Clinical descriptions and pictorial examples
- eGFR calculator
- Pediatric dose calculator
- Steroid pretreatment regimens
- Nephrogenic systemic fibrosis overview
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This app provides quick access to treatment regimens for potentially life-threatening reactions that can occur with iodine or gadolinium radiographic contrast. Included are clinical descriptions, pictorial examples, sound clips, and treatment regimens for the various types of reactions. Also included are a pediatric dose calculator, an eGFR calculator, a self-assessment module, pretreatment medication regimens, and an overview of nephrogenic systemic fibrosis.
Screenshots
Verdict
The clearest difference is review sentiment: Thoracic Lymph Node Map at 100% against ContrastRx's 50%. Thoracic Lymph Node Map also leads on rating (4.8 vs 4.4). ContrastRx's advantage is update cadence (every 3 weeks vs every 7 months). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Thoracic Lymph Node Map holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 25 and 9 respectively. Written reviews point the same way: 100% of Thoracic Lymph Node Map's written reviews are positive against 50% of ContrastRx's.
Thoracic Lymph Node Map ships an update every 7 months, ContrastRx every 3 weeks. The most recent releases landed on September 7, 2026 and September 14, 2026 respectively.
| Parameter | Thoracic Lymph Node Map | ContrastRx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (25 ratings) — better | 4.4 (9 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 25 — better | 9 |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.6 |
| Further details — not scored | ||
| Size | 128 MB | 9 MB |
| Age rating | 12+ | 17+ |
| Developer | RADIOLOGiQ, LLC | Mayo Clinic |
Customer experience
Thoracic Lymph Node Map
ContrastRx
In-app purchases
Thoracic Lymph Node Map
No in-app purchases
ContrastRx
No in-app purchases
Questions
Is Thoracic Lymph Node Map free?
Is ContrastRx free?
Which has better reviews, Thoracic Lymph Node Map or ContrastRx?
Do Thoracic Lymph Node Map or ContrastRx have ads?
Which is updated more often, Thoracic Lymph Node Map or ContrastRx?
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