NBMEcalc VS DiffDojo

NBMEcalc's answer

NBMEcalc combines multiple practice assessment sources—including NBME, UWSA, Free 120, AMBOSS Self-Assessment, and CMS—into one USMLE planning range. Instead of presenting a single “magic” score, it shows a 95% confidence interval, supports Step 1, Step 2 CK, and Step 3, and makes its methodology and limitations public.

NBMEcalc's answer

NBMEcalc is designed for students who want to interpret several practice assessments together rather than relying on one score in isolation. The core predictor is free, works without registration, supports multiple assessment sources, and clearly communicates the uncertainty around every estimate.

NBMEcalc's answer

NBMEcalc is built for medical students and graduates preparing for USMLE Step 1, Step 2 CK, or Step 3. It is especially useful for test-takers who have results from several practice assessments and need a clearer view of their score range, pass readiness, and study trajectory.

NBMEcalc's answer

NBMEcalc began in late 2025 after frustration with closed-source score predictors and one-size-fits-all advice. The first prototype was created to combine multiple practice assessment sources into a more transparent planning range. The project later added a public methodology, confidence intervals, free score prediction, downloadable reports, and multi-exam tracking.

NBMEcalc's answer

NBMEcalc is a responsive browser-based application built with Next.js, React, and TypeScript. It uses statistical score-normalization and weighting logic to combine multiple practice assessment results. The application is mobile-friendly and can be used directly in a web browser without installing native software.

NBMEcalc's answer

• Medical students preparing for USMLE Step 1
• Medical students and graduates preparing for USMLE Step 2 CK
• Medical graduates preparing for USMLE Step 3
• International medical graduates preparing for USMLE examinations