Comparison

OnServiceMD STAT 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

OnServiceMD STAT

Manage hospitalist schedules and access critical information on the go. Providers can view schedules, request shifts, and access documents, while schedulers can make real-time changes and administrative adjustments from their mobile devices.

Highlights
  • View schedules
  • Request shifts
  • Access documents
  • Modify shifts
  • Administrative functions
  • Real-time schedule changes
Features
Read full description

STAT puts the power of OnServiceMD in your pocket. Hospitalist scheduling and more, whenever and wherever you need it. Hospitalists, housestaff, physician assistants and other providers can view their schedules, request shifts, and access documents and other information on the go. Schedulers can make changes to the schedule and modify shifts, all with ease. They can also perform many of the other, mission-critical administrative functions that they are accustomed to with OnServiceMD, all from their mobile device.

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

OnServiceMD STAT4 screens
MKSAP 191 screens

Verdict

The call

The clearest difference is rating: MKSAP 19 at 4.1 against OnServiceMD STAT's 3.0. MKSAP 19 also leads on update cadence (every 2 months vs every 12 months) and ratings volume (38 vs 4). On price, ads, in-app purchases and monetization model 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 3.0. That said, the two scores are not equally well evidenced: MKSAP 19 has 38 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

OnServiceMD STAT ships an update every 12 months, MKSAP 19 every 2 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
OnServiceMD STAT versus MKSAP 19: the parameters behind the verdict, then further details
ParameterOnServiceMD STATMKSAP 19
PriceFreeFree
Rating3.0 (4 ratings)4.1 (38 ratings) — better
Positive reviews—70.6% of reviews
Number of ratings438 — better
Update frequencyEvery 12 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size3 MB423 MB
Age rating4+17+
DeveloperOnService Solutions, LLC.American College of Physicians

Customer experience

OnServiceMD STAT

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

MKSAP 19

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

In-app purchases

None

OnServiceMD STAT

No in-app purchases

None

MKSAP 19

No in-app purchases

Questions

Is OnServiceMD STAT free?
OnServiceMD STAT 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, OnServiceMD STAT or MKSAP 19?
MKSAP 19 is rated higher. OnServiceMD STAT averages 3.0 out of 5 from 4 ratings, while MKSAP 19 averages 4.1 from 38 ratings.
Do OnServiceMD STAT or MKSAP 19 have ads?
Neither OnServiceMD STAT nor MKSAP 19 shows ads.
Which is updated more often, OnServiceMD STAT or MKSAP 19?
OnServiceMD STAT ships an update every 12 months, and MKSAP 19 every 2 months. Most recently, OnServiceMD STAT was updated on October 23, 2026 and MKSAP 19 on October 21, 2026.

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