Comparison

Pacemaker vs MKSAP 19

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

Head to head
About

Pacemaker

This application uses advanced deep learning to identify the manufacturer of pacemakers and defibrillators from X-ray images. It currently supports major brands like Boston Scientific, Biotronik, Medtronic, and St. Jude.

Highlights
  • AI-powered device identification
  • X-ray image analysis
  • Pacemaker and defibrillator detection
  • Supports major manufacturers
  • Deep-learning model
Features
Read full description

Pacemaker-ID uses a deep-learning model to determine the manufacturer of a given pacemaker and defibrillator in an x-ray image. Currently, we support detection of: - Boston Scientific - Biotronik - Medtronic - St. Jude

About

MKSAP 19

This medical education app provides access to current information in internal medicine and subspecialties. It includes exam-like questions and patient-based clinical scenarios to help physicians assess and update their knowledge. Offline access to content is available for subscribers.

Highlights
  • Current internal medicine information
  • 1,200 exam-like multiple-choice questions
  • Patient-based clinical scenarios
  • Offline content access
  • Syncs with online version
  • Enhances learning with figures, charts, and tables
Features
Read full description

This app supplements the online version and is included with the MKSAP 19 Digital, MKSAP 19 Complete Green, and MKSAP 19 Complete subscriptions. Simply log in with your ACP or MKSAP 19 username and password. If you need assistance setting up your account, visit ACP Online. Some functionality within the app requires an active internet connection. Your suggestions for future updates and enhanced features are welcome at mksap_editors@acponline.org. The new Medical Knowledge Self-Assessment Program® (MKSAP® 19) provides you with the most current and critical information in the core of internal medicine and its subspecialties so you can stay aware of what you need to know as a practicing physician in internal medicine today. MKSAP 19 consists of well-researched text sections and 1,200 exam-like multiple-choice questions along with hundreds of figures, charts, and tables to enhance your learning experience. MKSAP 19's original, high-quality questions comprise patient-based clinical scenarios based on the latest evidence. Each question will challenge your decision-making, help you discover areas of strength, and target areas for you to update or acquire new knowledge. This app enables subscribers to MKSAP 19 Digital, MKSAP 19 Complete Green, or MKSAP 19 Complete to read all of the text and answer all of the questions offline. When you are connected to the Internet, answers will sync automatically with the online version. The publisher of this app, the American College of Physicians, is the largest medical specialty organization in the United States with members in more than 145 countries worldwide. ACP membership includes 161,000 internal medicine physicians (internists), related subspecialists, and medical students. Internal medicine physicians are specialists who apply scientific knowledge and clinical expertise to the diagnosis, treatment, and compassionate care of adults across the spectrum from health to complex illness.

Screenshots

Pacemaker2 screens
MKSAP 191 screens

Verdict

The call

The clearest difference is rating: MKSAP 19 at 4.1 against Pacemaker's 3.5. MKSAP 19 also leads on review sentiment (71% vs 40%). Pacemaker's advantage is update cadence (every 4 days vs every 2 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

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

MKSAP 19 holds the better App Store score, 4.1 against 3.5. Both are backed by a comparable volume of ratings — 54 and 37 respectively. Written reviews point the same way: 40% of Pacemaker's written reviews are positive against 71% of MKSAP 19's.

UpkeepUpdate frequency

Pacemaker ships an update every 4 days, MKSAP 19 every 2 months. The most recent releases landed on September 29, 2026 and September 26, 2026 respectively.

Scorecard3 real differences · 7 level
Pacemaker versus MKSAP 19: the parameters behind the verdict, then further details
ParameterPacemakerMKSAP 19
PriceFreeFree
Rating3.5 (54 ratings)4.1 (37 ratings) — better
Positive reviews40.0% of reviews70.6% of reviews — better
Number of ratings54 — better37
Update frequencyEvery 4 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.1 — better12.0
Further details — not scored
Size20 MB423 MB
Age rating4+17+
DeveloperTHE UNSUNG LLCAmerican College of Physicians

Customer experience

Pacemaker

All ratings53 ratings
Positive58.5%
Neutral5.7%
Negative35.8%
Written reviews25 reviews
Positive40.0%
Neutral8.0%
Negative52.0%

MKSAP 19

All ratings37 ratings
Positive73.0%
Neutral16.2%
Negative10.8%
Written reviews17 reviews
Positive70.6%
Neutral17.6%
Negative11.8%

In-app purchases

None

Pacemaker

No in-app purchases

None

MKSAP 19

No in-app purchases

Questions

Is Pacemaker free?
Pacemaker is free to download, with no in-app purchases.
Is MKSAP 19 free?
MKSAP 19 is free to download, with no in-app purchases.
Which has better reviews, Pacemaker or MKSAP 19?
MKSAP 19 is rated higher. Pacemaker averages 3.5 out of 5 from 54 ratings, while MKSAP 19 averages 4.1 from 37 ratings.
Do Pacemaker or MKSAP 19 have ads?
Neither Pacemaker nor MKSAP 19 shows ads.
Which is updated more often, Pacemaker or MKSAP 19?
Pacemaker ships an update every 4 days, and MKSAP 19 every 2 months. Most recently, Pacemaker was updated on September 29, 2026 and MKSAP 19 on September 26, 2026.

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