Comparison

USMLE Pro vs Bayesian P

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

Head to head
About

USMLE Pro

Features
Read full description

Advanced USMLE preparation with a clinical centre of gravity: 2000+ advanced-level questions for Step 2 CK and Step 3, high-yield flashcards, Step-specific learning paths, and analytics that find your gaps. Step 1 content is included, and all of it works offline. THE QUESTION BANK 2000+ advanced-level exam-style questions across Step 1, Step 2 CK and Step 3, each with a detailed explanation that reinforces the underlying concept and shows why the other options do not hold. FLASHCARDS High-yield flashcards to reinforce the core concepts — the facts you need to produce instantly rather than reason towards. LEARNING PATHS Step-specific paths so you are working through the material in an order that matches the exam you are actually sitting, instead of assembling a plan yourself. ANALYTICS Smart performance tracking that highlights weak areas, so your time goes where it will change your score. OFFLINE Questions and flashcards download for offline study — built for travel, clinical rotations and hospital dead zones. ALL THREE STEPS COVERED Step 1 — basic sciences, pathology, pharmacology, microbiology, immunology, physiology Step 2 CK — clinical knowledge, patient care, diagnosis, medicine, surgery, paediatrics, obstetrics and gynaecology, psychiatry Step 3 — case scenarios, advanced clinical decision making, biostatistics, medical ethics WHO IT IS FOR Students and graduates preparing for USMLE Step 2 CK, residents sitting Step 3, and international medical graduates working towards US certification and the residency match. It works just as well for other medical licensing exams such as COMLEX. FEEDBACK We keep improving this and your mail matters: info@testflood.com DISCLAIMER This app is not affiliated with, endorsed by, or connected to the USMLE, NBME or FSMB. It is an independent study aid for educational use.

About

Bayesian P

This app helps interpret p-values from clinical trials by incorporating prior probabilities and Bayesian inference. It provides realistic interpretations of reported p-values, aiding in understanding the likelihood of experimental outcomes.

Highlights
  • Interpret p-values with prior probabilities
  • Bayesian inference for scientific expectations
  • Calculate probability of clinical trial outcomes
  • Realistic interpretation of reported p-values
  • Explanations and examples of Bayesian concepts
Features
Read full description

Calculate probability of outcomes of clinical trials, by interpreting reported p-values in the context of scientific expectations, using prior probabilities of outcomes and Bayesian thinking. · p-values are frequently misused and misinterpreted ( see American Statistical Association statement on p-values) · Bayesian inference aids interpretation of p-values with reference to prior knowledge of the probability of the experimental outcome · P-value Interpreter permits realistic interpretation of reported p-values from user entered pre-trial probabilities of clinical trial outcomes and p-values for single and sequential trials · "Learn more" buttons lead to explanations of prior probabilities, p-values and Bayesian probabilities employed in calculating the direct probability of the trial outcomes (e.g. null hypothesis being false), illustrated with examples

Screenshots

USMLE Pro4 screens
Bayesian P4 screens

Verdict

The call

The clearest difference is price: Bayesian P at Free against USMLE Pro's $24.99. USMLE Pro's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.4). On 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

Bayesian P is free to download; USMLE Pro costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

USMLE Pro ships an update every 3 weeks, Bayesian P monthly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
USMLE Pro versus Bayesian P: the parameters behind the verdict, then further details
ParameterUSMLE ProBayesian P
Price$24.99Free — better
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.4
Further details — not scored
Size33 MB7 MB
Age rating4+4+
DeveloperEyyup TaskinSamuel Kaplan

In-app purchases

None

USMLE Pro

No in-app purchases

None

Bayesian P

No in-app purchases

Questions

Is USMLE Pro free?
USMLE Pro costs $24.99, with no in-app purchases.
Is Bayesian P free?
Bayesian P is free to download, with no in-app purchases.
Do USMLE Pro or Bayesian P have ads?
Neither USMLE Pro nor Bayesian P shows ads.
Which is updated more often, USMLE Pro or Bayesian P?
USMLE Pro ships an update every 3 weeks, and Bayesian P monthly. Most recently, USMLE Pro was updated on October 10, 2026 and Bayesian P on October 9, 2026.

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