Comparison

MKSAP 19 vs Oakstone CMEssentials

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

Head to head
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.

About

Oakstone CMEssentials

Features
Read full description

CMEssentials is Oakstone’s all-access CME platform — designed to help busy physicians stay current and earn CME credits with greater flexibility and ease. With CMEssentials, you can access trusted clinical education in a streamlined, mobile-first experience. Whether you prefer audio, video, or reading-based learning, everything lives in one unified platform. What You Can Do in the App: • Browse content by specialty and topic • Listen to concise, podcast-style audio episodes • Watch specialty-focused video courses • Complete short assessments • Track and manage CME credits • Access certificates and credit history in one place • Pause and resume learning with ease CMEssentials is built for real-world clinical schedules. Learn between patients, during your commute, or whenever time allows — your progress syncs seamlessly across web and mobile. Hassle-free CME.

Screenshots

MKSAP 191 screens
Oakstone CMEssentials4 screens

Verdict

The call

The clearest difference is iOS requirement: MKSAP 19 at 12.0 against Oakstone CMEssentials's 15.6. On price, update cadence, 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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 8, 2026.

Scorecard1 real difference · 9 level
MKSAP 19 versus Oakstone CMEssentials: the parameters behind the verdict, then further details
ParameterMKSAP 19Oakstone CMEssentials
PriceFreeFree
Rating4.1 (37 ratings) — better—
Positive reviews70.6% of reviews—
Number of ratings37 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size423 MB81 MB
Age rating17+4+
DeveloperAmerican College of PhysiciansOakstone Publishing, LLC

In-app purchases

None

MKSAP 19

No in-app purchases

None

Oakstone CMEssentials

No in-app purchases

Questions

Is MKSAP 19 free?
MKSAP 19 is free to download, with no in-app purchases.
Is Oakstone CMEssentials free?
Oakstone CMEssentials is free to download, with no in-app purchases.
Do MKSAP 19 or Oakstone CMEssentials have ads?
Neither MKSAP 19 nor Oakstone CMEssentials shows ads.
Which is updated more often, MKSAP 19 or Oakstone CMEssentials?
MKSAP 19 ships an update every 2 months, and Oakstone CMEssentials every 2 months. Most recently, MKSAP 19 was updated on October 8, 2026 and Oakstone CMEssentials on October 8, 2026.

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