# CHEST SEEK vs NACFC

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.

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.

## The numbers

| Metric | CHEST SEEK | NACFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (539 ratings)](https://appshunter.io/ios/app/chest-seek/id1513335435/reviews) | **[4.6 (221 ratings)](https://appshunter.io/ios/app/nacfc/id6443723259/reviews)** |
| Number of ratings | **539** | 221 |
| Positive reviews | **30.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 97 MB |
| Requires iOS | 17.4 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [American College of Chest Physicians](https://appshunter.io/developer/541113525) | [Cystic Fibrosis Foundation](https://appshunter.io/developer/474104960) |

## What reviewers say

### CHEST SEEK

[App page](https://appshunter.io/ios/app/chest-seek/id1513335435)

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.

**Highlights:** Case-based questions, Expert-written rationales, Exam preparation, CME credit and MOC points, Over 1,200 questions, Multiple medical topics

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 High-quality study content
- 👍 User-friendly interface (when working properly)
- 🚀 Accessible on-the-go studying
- 📚 Comprehensive question bank with clear, concise questions

**What reviewers complain about**

- 🐛 Frequent app crashes and stability issues
- 😤 Cumbersome and unintuitive navigation
- ❌ Missing key features (highlight, strikethrough, search)
- 🔄 Poor cross-device synchronization
- 📱 Inconsistent with website version

**Reported bugs**

- App crashes seconds after launch
- Unable to login despite valid credentials
- Progress does not sync across devices
- Server connectivity issues
- Incompatibility with older devices

**Requested features**

- Highlight and strikethrough text organization tools
- Cross-device synchronization
- Search functionality for keywords
- UI/UX redesign similar to UWorld
- Peer answer statistics


### NACFC

[App page](https://appshunter.io/ios/app/nacfc/id6443723259)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CHEST SEEK free?

CHEST SEEK is free to download, with no in-app purchases.

### Is NACFC free?

NACFC is free to download, with no in-app purchases.

### Which has better reviews, CHEST SEEK or NACFC?

NACFC is rated higher. CHEST SEEK averages 4.4 out of 5 from 539 ratings, while NACFC averages 4.6 from 221 ratings.

### Do CHEST SEEK or NACFC have ads?

Neither CHEST SEEK nor NACFC shows ads.

### Which is updated more often, CHEST SEEK or NACFC?

CHEST SEEK ships an update every 2 months, and NACFC every 11 months. Most recently, CHEST SEEK was updated on October 29, 2026 and NACFC on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*