Comparison

PLCOm2012 LCRC vs Incidental Lung Nodule Guide

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

Head to head
About

PLCOm2012 LCRC

Features
Read full description

This app is for use by people who currently smoke or used to smoke. It is a lung cancer risk calculator. It calculates your six-year risk of developing lung cancer based on your age, formal education, height and weight, family history of lung cancer, your cancer and lung health history, and your smoking history. There are two versions of the app. The only difference is one version, PLCOm2012 includes race as an input and the other version, PLCOm2012noRace does not have race as an input. The PLCOm2012noRace version is appropriate for use outside of the United States. You can take the risk calculated by this app to your health care professional and discuss if you should be screened for lung cancer and to see if you are eligible for screening in your area. This app can also be used by health care professionals with their patients to assess risk of lung cancer in a shared decision-making discussion about the benefits and potential risks of screening. The calculator is based on the PLCOm2012 lung cancer risk prediction model developed by Professor Martin Tammemägi. It has been validated by many researchers in multiple countries and is used in lung cancer screening studies, pilots and programs around the world. The PLCOm2012 app version has been simplified by reducing race/ethnic categories from 7 to 3. The PLCOm2012noRace app has been simplified by taking race out as an input. Performance of the modified models are almost identical to the initial model and in some measures are improved. Any information you enter into this application will only be stored on your device while you are using the risk calculator. All input fields will be reset after you exit the app. The PLCOm2012 and PLCOm2012noRace LCRC apps work off-line and do not use internet connections. Your personal information is not collected or stored anywhere outside of your smartphone, so it is not possible for your information to be shared with others. The PLCOm2012 and PLCOm2012noRace LCRC apps were developed as a public service by epidemiologist Martin Tammemägi DVM, MSc, PhD and patient advocate Andrea Borondy Kitts MS, MPH. They are provided free of charge and free of advertising to the general public and the medical community. Disclaimer The content of the PLCOm2012 and PLCOm2012noRace LCRC apps are based on scientific research. But information provided here should not be substituted for a physician’s evaluation, advice, diagnosis or treatment. Your doctor is the most appropriate person to provide you with guidance on specific health issues. If you are currently ill or have symptoms, seek the help of your health care provider. If you currently smoke, one of the most important health decisions you can make, is to quit smoking. Your doctor should be able to help you quit more successfully. No cancer prediction model is 100% accurate. It is important to appreciate that some individuals with low predicted risks will develop lung cancer, and not all individuals with high risk scores will develop lung cancer. We provide the PLCOm2012 and PLCOm2012noRace Lung Cancer Risk Calculators apps (PLCOm2012 and PLCOm2012noRace LCRC apps) as a public service only and you use them at your own risk.

About

Incidental Lung Nodule Guide

This decision-support tool helps clinicians apply guidelines for incidental pulmonary nodules on CT scans. It provides structured recommendations, interactive timelines, and visual aids for consistent, informed decision-making at the point of care. Features include malignancy risk calculation and offline access.

Highlights
  • Guideline-based recommendations
  • Interactive visual timeline
  • Visual aids for nodule identification
  • Comprehensive nodule insights
  • Self-assessment mode
  • Malignancy risk calculator
  • Offline access
Features
Read full description

Download includes a free trial; continued use requires a 6- or 12-month auto-renewing subscription. Incidental Lung Nodule Guide is a decision-support guide that helps radiologists, pulmonologists, and primary-care clinicians apply the 2017 Fleischner Society guidelines for incidental pulmonary nodules on CT in their daily workflow. The app offers a streamlined, intuitive interface that supports consistent and informed decision-making at the point of care. Key Features (unlocked after free trial with an active subscription): Guideline-Based Support • Structured recommendations for both solid and subsolid (non-solid and part-solid) nodules—based on nodule size, nodule attenuation, whether solitary or multiple, and patient-specific risk factors. Interactive Visual Timeline • Follow-up intervals are clearly visualized, showing recommended CT timeframes based on the selected inputs—making guideline application fast and easy. Visual Aids • Illustrative examples help with identifying nodule calcification patterns and nodule density. Comprehensive Nodule Insights • Includes guidance on perifissural nodules, apical scarring, and nodules incidentally found on neck or abdominal CT scans. Self-Assessment Mode • Expert-curated self-assessment questions. Brock (Full Model) Calculator • Calculate a CT-detected nodule’s 2–4 year malignancy risk. Enhanced Readability • Designed for daily clinical use with support for dark mode and dynamic text sizing—helping ensure legibility in diverse reading environments. Offline Access • No login or server needed. 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. SUBSCRIPTION OPTIONS ¹ • 6-Month subscription (free trial available) | Price displayed in-app, may vary by region • 12-Month subscription  (free trial available) | Price displayed in-app, may vary by region We strive to incorporate any updated incidental lung nodule guidelines within 30 days of publication and we plan to add a new self-assessment question pack every six months. Future feature additions and update frequency may change without notice. ¹ Payment & Renewal – Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in Settings ▸ Apple ID ▸ Subscriptions. Note: If you switch plans or re-subscribe during the free trial, the remaining trial time is lost and you will be charged immediately. Privacy Policy: https://radiologiq.squarespace.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PLCOm2012 LCRC4 screens
Incidental Lung Nodule Guide4 screens

Verdict

The call

The clearest difference is in-app purchases: PLCOm2012 LCRC at none against Incidental Lung Nodule Guide's 2. Incidental Lung Nodule Guide's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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. Incidental Lung Nodule Guide sells 2 in-app purchases, starting at $3.49 per 6 months. PLCOm2012 LCRC asks for nothing beyond the download.

UpkeepUpdate frequency

PLCOm2012 LCRC ships an update every 2 months, Incidental Lung Nodule Guide fortnightly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 7 level
PLCOm2012 LCRC versus Incidental Lung Nodule Guide: the parameters behind the verdict, then further details
ParameterPLCOm2012 LCRCIncidental Lung Nodule Guide
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.6
Further details — not scored
Size38 MB134 MB
Age rating4+12+
DeveloperBlue Pony DigitalRADIOLOGiQ, LLC

In-app purchases

None

PLCOm2012 LCRC

No in-app purchases

2 purchases

Incidental Lung Nodule Guide

Subscriptions2
  • 6-Month Subscription7 Days trial$3.496 Months
  • 12-Month Subscription7 Days trial$4.991 Year

Questions

Is PLCOm2012 LCRC free?
PLCOm2012 LCRC is free to download, with no in-app purchases.
Is Incidental Lung Nodule Guide free?
Incidental Lung Nodule Guide is free to download, with in-app purchases available.
Do PLCOm2012 LCRC or Incidental Lung Nodule Guide have ads?
Neither PLCOm2012 LCRC nor Incidental Lung Nodule Guide shows ads.
Which is updated more often, PLCOm2012 LCRC or Incidental Lung Nodule Guide?
PLCOm2012 LCRC ships an update every 2 months, and Incidental Lung Nodule Guide fortnightly. Most recently, PLCOm2012 LCRC was updated on October 16, 2026 and Incidental Lung Nodule Guide on October 14, 2026.

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