Comparison

EBM Stats Calc vs Core Workflows

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

Head to head
About

EBM Stats Calc

This medical app assists clinicians and educators in performing complex calculations related to evidence-based medicine. It offers tools for calculating NNTs, diagnostic test utility, and understanding the impact of pretest probability on posttest results.

Highlights
  • Calculate Number Needed to Treat (NNT)
  • Calculate diagnostic test utility
  • Pretest to posttest probability conversion
  • Positive and Negative Predictive Value calculation
  • Interactive slider for pretest probability demonstration
  • Useful for clinicians, students, residents, and educators
Features
Read full description

Occasionally in medicine, we really need to "do the math". This app will help. EBM Stats Calc let's a clinician do calculations that are hard or impossible to do in one's head. A clinician can get NNT's (number needed to treat) from rates, percentages, or raw event and patient numbers. And a clinician can use sensitivity and specificity or likelihood ratios (LR+, LR-) to go from a pretest probability to posttest probability and positive predictive value and negative predictive value. Although these calculators themselves are somewhat novel for apps, the unique tool in this app is for educators. Students and residents have a hard time understanding how the utility of a test can vary with pretest probability. Instead of saying it in words and hoping they get it, now you can demonstrate it. A test might perform well, giving good PPV and NPV, when pretest probability is in a certain range. But slide that pretest probability up or down and see the diagnostic utility change with the numbers flying right before your eyes. The tool also shows a student that in many cases, an imprecise estimate of pretest probability doesn't much matter. Different doctors might judge a clinical case to suggest likelihood of disease (pretest probability) of 40%, 50%, or 60%. The slider tool shows that the differences may not matter, and the test in mind will render good clarity regardless of differing opinions on pretest probability. The app is written for clinicians, students, residents, and especially educators, in any discipline of medicine. As a clinician and educator myself, I would be grateful for feedback to make the tool better.

About

Core Workflows

This medical app synchronizes patient care and clinical progress information between mobile and desktop devices. It provides specialty-specific visual presentations of EHR data, enabling efficient team communication, rounds organization, and discharge readiness assessment. Smart notifications and secure messaging ensure timely information delivery for critical decision-making.

Highlights
  • Mobile-to-desktop synchronization
  • Specialty-specific data visualization
  • Team communication and coordination
  • Smart notifications
  • Secure messaging
  • Patient status tracking
Features
Read full description

Streamline patient care, clinical progress and team communication with this EHR-embedded application that synchronizes information from mobile-to-desktop. Rich, actionable EHR information is visually presented in a format unique to each specialty’s priorities. Clinical teams caring for a patient have what they need, when they need it, to organize rounds, convey discharge readiness, and conduct hand offs. As status and situations change, smart notifications and secure messaging ensure the right information is provided to act.

Screenshots

EBM Stats Calc4 screens
Core Workflows3 screens

Verdict

The call

The clearest difference is review sentiment: EBM Stats Calc at 100% against Core Workflows's 50%. EBM Stats Calc also leads on rating (4.5 vs 3.9). Core Workflows's advantage is update cadence (every 4 months vs every 14 months) and ratings volume (13 vs 2). 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

EBM Stats Calc holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Core Workflows has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of EBM Stats Calc's written reviews are positive against 50% of Core Workflows's.

UpkeepUpdate frequency

EBM Stats Calc ships an update every 14 months, Core Workflows every 4 months. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
EBM Stats Calc versus Core Workflows: the parameters behind the verdict, then further details
ParameterEBM Stats CalcCore Workflows
PriceFreeFree
Rating4.5 (2 ratings) — better3.9 (13 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings213 — better
Update frequencyEvery 14 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size1 MB49 MB
Age rating12+17+
DeveloperJoshua D. steinbergTransformativeMed Inc

Customer experience

EBM Stats Calc

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Core Workflows

All ratings12 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

EBM Stats Calc

No in-app purchases

None

Core Workflows

No in-app purchases

Questions

Is EBM Stats Calc free?
EBM Stats Calc is free to download, with no in-app purchases.
Is Core Workflows free?
Core Workflows is free to download, with no in-app purchases.
Which has better reviews, EBM Stats Calc or Core Workflows?
EBM Stats Calc is rated higher. EBM Stats Calc averages 4.5 out of 5 from 2 ratings, while Core Workflows averages 3.9 from 13 ratings.
Do EBM Stats Calc or Core Workflows have ads?
Neither EBM Stats Calc nor Core Workflows shows ads.
Which is updated more often, EBM Stats Calc or Core Workflows?
EBM Stats Calc ships an update every 14 months, and Core Workflows every 4 months. Most recently, EBM Stats Calc was updated on September 26, 2026 and Core Workflows on September 27, 2026.

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