BioStat Lab vs JournalReady

BioStat Lab is a precise, offline statistical power and sample size calculator designed for biomedical researchers, clinicians, and students. CALCULATORS INCLUDED t-Test — Independent & Paired Calculate the required sample size for independent-samples or paired t-tests. Enter mean difference, standard deviation, significance level (α), and desired power (1−β). ANOVA — One-Way Determine per-group and total sample size for a one-way ANOVA across 2–20 groups. Uses Bonferroni-adjusted alpha for multiple-comparison control. Proportions — Two-Proportion z-Test Compare two event rates or response proportions. Displays absolute difference and risk ratio alongside the required sample size per group. Correlation — Pearson r Sample size for testing whether a Pearson correlation is significantly different from zero. Uses Fisher z-transformation for accuracy. Includes Cohen's effect-size classification. Survival — Log-Rank Test Event-driven sample size for survival studies using Freedman's formula. Enter hazard ratio, expected event rate, α, and power to get required events and total subjects. DESIGN PHILOSOPHY Dark space-inspired interface — deep indigo background, violet accent readouts, monospaced numeric displays — optimized for focused scientific work. PRIVACY No account required. No data collected. All calculations happen on-device.

Turn your research question into a clearer study plan and a stronger submission. JournalReady brings AI feedback, journal discovery and statistical tools together for clinicians, healthcare researchers and academics. IMPROVE YOUR ABSTRACT AND TITLE Get AI feedback on your abstract and title to identify areas to refine before submission. Strengthen clarity and focus while keeping control of your research. EXPLORE JOURNALS FOR YOUR MANUSCRIPT Use Journal Finder to explore potential journals and the Predatory Journal Checker to investigate warning signs. Always verify journal details and submission requirements with the publisher. PLAN YOUR NEXT STUDY Refine a research question, structure it with PICO/PECO, explore study designs and assess feasibility. Use the statistical test selector to consider an appropriate analysis. RESEARCH CALCULATORS IN YOUR POCKET Calculate sample size, confidence intervals, number needed to treat and diagnostic test measures. Interpret p-values and consult statistical tables and a glossary. Calculators and reference tools work offline; AI tools require internet access. PREPARE WITH REPORTING CHECKLISTS Consult CONSORT, PRISMA, STROBE, CARE and TRIPOD checklists as you prepare your research report. START FREE, UPGRADE WHEN YOU NEED MORE Start with 10 free AI credits per month. Credit use varies by tool. An optional JournalReady Pro monthly or annual subscription purchased in the app unlocks unlimited AI tool use while active. See the in-app purchase screen for your local price and billing period. Subscriptions renew automatically unless cancelled. Manage or cancel through your store account settings. AI feedback supports your judgment and does not guarantee journal acceptance. Verify generated suggestions and statistical assumptions before use. JournalReady is a research support tool, not a clinical decision-making tool. Developed by Bayan AI Technologies, Muscat, Oman. Support: https://journalready.ai Privacy: https://journalready.ai/privacy Terms of Use: https://journalready.ai/terms