CHEST SEEK vs NACFC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHEST SEEK
Access a comprehensive library of case-based questions and detailed rationales in pulmonary, critical care, and sleep medicine. Prepare for certification exams, earn CME credit, and challenge your clinical knowledge anytime, anywhere.
- Case-based questions
- Expert-written rationales
- Exam preparation
- CME credit and MOC points
- Over 1,200 questions
- Multiple medical topics
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Written and peer reviewed by renowned experts in the pulmonary, critical care, and sleep medicine fields, the CHEST SEEK™ Library includes case-based questions and detailed rationales to stimulate and challenge your clinical thought processes; help you prepare for certification or recertification exams; and allow you to obtain CME credit, MOC points, and CE hours. Sign in with your CHEST ID to access your SEEK subscriptions—all at your fingertips and at your convenience. The library content includes more than 1,200 questions on many timely testing topics, including the following: • Breathing disorders • Cardiovascular disorders • Critical care disease • Diffuse parenchymal lung disease • Infectious disease • Neoplasia • Normal sleep and variants • Neurologic disorders • Obstructive lung disease • Obstructive sleep apnea • Renal, endocrine, and metabolic disorders • Pulmonary disease
NACFC
Access event schedules, presentations, exhibitors, and speaker details for NACFC events. Enhance your learning by taking notes directly on presentation slides, posters, and exhibitor information. Connect with other attendees through in-app messaging, tweeting, and emailing.
- View event schedule
- Access presentations and speaker details
- Take notes on slides, posters, and exhibitors
- Draw directly on presentation slides
- In-app messaging with attendees
- Share information via tweeting and emailing
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****FOR ATTENDEES ONLY**** The NACFC mobile application allows you to view the schedule, presentations, exhibitors and speaker details from NACFC events. Users can take notes adjacent available presentation slides and draw directly on slides inside the app. Note-taking is also available in the posters and exhibitors modules. Additionally, users can share information with attendees and colleagues with in app messaging, tweeting and emailing.
Screenshots
Verdict
The clearest difference is review sentiment: CHEST SEEK at 30% against NACFC's 0%. CHEST SEEK also leads on update cadence (every 2 months vs every 11 months). NACFC's advantage is monetization model (free vs free with in-app purchases) and rating (4.6 vs 4.4). 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.
NACFC holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 539 and 221 respectively. Written reviews complicate that: 30% of CHEST SEEK's written reviews are positive against 0% of NACFC's, so the app with the better star average is not the one people write more warmly about.
CHEST SEEK ships an update every 2 months, NACFC every 11 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | CHEST SEEK | NACFC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (539 ratings) | 4.6 (221 ratings) — better |
| Positive reviews | 30.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 539 — better | 221 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.4 | 15.5 — better |
| Further details — not scored | ||
| Size | 28 MB | 97 MB |
| Age rating | 17+ | 17+ |
| Developer | American College of Chest Physicians | Cystic Fibrosis Foundation |
Customer experience
CHEST SEEK
NACFC
Bugs and requests
CHEST SEEK
Reported bugs
9 issues- App crashes seconds after launch
- Unable to login despite valid credentials
- Progress does not sync across devices
- Server connectivity issues
- Incompatibility with older devices
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- Font sizing problems (too small or too large)
- Forced logout with inability to log back in
- Question reset functionality not working as expected
- Inconsistent behavior between app and website versions
Requested features
10 requests- Highlight and strikethrough text organization tools
- Cross-device synchronization
- Search functionality for keywords
- UI/UX redesign similar to UWorld
- Peer answer statistics
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- Better question organization by topic
- Reset answer functionality without support contact
- Desktop compatibility
- Adjustable font sizing options
- Distinct exam questions separate from MCQ bank
NACFC
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CHEST SEEK
No in-app purchases
NACFC
No in-app purchases
Questions
Is CHEST SEEK free?
Is NACFC free?
Which has better reviews, CHEST SEEK or NACFC?
Do CHEST SEEK or NACFC have ads?
Which is updated more often, CHEST SEEK or NACFC?
Other comparisons
