Comparison

SIMPL vs EBM Calculator

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

Head to head
About

SIMPL

This app facilitates workplace-based assessments for medical professionals, enabling the evaluation of entrustable professional activities within medical education settings.

Highlights
  • Workplace-based assessments
  • Entrustable professional activities
  • Medical education implementation
  • Professional development tracking
Features
Read full description

SIMPL: Society for Improving Medical Professional Learning makes it feasible to implement workplace-based assessments, including assessment of entrustable professional activities, across medical education.

About

EBM Calculator

This app helps medical professionals quickly interpret study results. It offers calculators for effect size, diagnostic test accuracy, and post-test probability, along with lessons and tutorials on evidence-based medicine.

Highlights
  • Effect Size Calculator
  • Diagnostic Test Accuracy Calculator
  • Post-Test Probability Calculator
  • Fagan Nomogram visualization
  • Save, Search, and Share results
  • Evidence-Based Medicine lessons
  • iCloud Sync
Features
Read full description

Built to support your appraisal of medical evidence—EBM Calculator is fast, clear, and easy to use. Effect Size Calculator • Used for studies that examine the effect of a therapy or exposure • Calculate key measures for dichotomous outcomes: ◦ Absolute Risk Reduction (ARR) ◦ Number Needed to Treat (NNT) ◦ Risk Ratio (RR) ◦ Relative Risk Reduction (RRR) ◦ Odds Ratio (OR) • Includes 95% Confidence Intervals for every metric Diagnostic Test Calculator • Used for studies that evaluate the accuracy of a diagnostic test • Calculate core statistics: ◦ Sensitivity & Specificity ◦ Likelihood Ratios (LR+, LR–) ◦ Positive & Negative Predictive Values (PPV, NPV) • Includes 95% Confidence Intervals for all measures Post-Test Probability Calculator • Used to estimate the likelihood of disease after a test result • Input Sensitivity & Specificity or Likelihood Ratios • Visualize probability changes with an interactive Fagan Nomogram Save, Search & Share • Save unlimited results for future reference • Search, sort, and filter results to quickly find what matters • Share results as a PNG—ideal for Messages, email, and clean formatting • Export results as an .ebmc file to archive or send to other EBM Calculator users • Tap an .ebmc file to import results back into EBM Calculator Lessons • Explore lessons in Evidence-Based Medicine (EBM) • Reinforce core concepts in biostatistics and study design • Search lessons by title or keyword Guided Tutorials • Step-by-step tutorials walk you through every major feature • Access from the menu in each view or from Settings iCloud Sync • Saved results sync automatically across all your devices Have questions, feedback, or suggestions? Reach out to support@ebmcalculator.com

Screenshots

SIMPL4 screens
EBM Calculator4 screens

Verdict

The call

The clearest difference is rating: EBM Calculator at 5.0 against SIMPL's 4.1. SIMPL's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (16 vs 3). 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 Calculator holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: SIMPL has 16 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

SIMPL ships an update every 2 weeks, EBM Calculator every 3 months. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 6 level
SIMPL versus EBM Calculator: the parameters behind the verdict, then further details
ParameterSIMPLEBM Calculator
PriceFreeFree
Rating4.1 (16 ratings)5.0 (3 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings16 — better3
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.1
Further details — not scored
Size37 MB14 MB
Age rating4+4+
DeveloperProcedural Learning and Safety Collaborative, IncDavid Stewart

Customer experience

SIMPL

All ratings16 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

EBM Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SIMPL

No in-app purchases

None

EBM Calculator

No in-app purchases

Questions

Is SIMPL free?
SIMPL is free to download, with no in-app purchases.
Is EBM Calculator free?
EBM Calculator is free to download, with no in-app purchases.
Which has better reviews, SIMPL or EBM Calculator?
EBM Calculator is rated higher. SIMPL averages 4.1 out of 5 from 16 ratings, while EBM Calculator averages 5.0 from 3 ratings.
Do SIMPL or EBM Calculator have ads?
Neither SIMPL nor EBM Calculator shows ads.
Which is updated more often, SIMPL or EBM Calculator?
SIMPL ships an update every 2 weeks, and EBM Calculator every 3 months. Most recently, SIMPL was updated on October 5, 2026 and EBM Calculator on October 2, 2026.

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