Bland-Altman analysis software Assess agreement between methods using Bland–Altman limits of agreement, detect proportional or constant bias, and meet CLSI EP09‑A3 requirements — all within Excel.

Trusted by over 60,000 users at top-10 IVD manufacturers for more than 30 years.

Accurate, compliant Bland–Altman analysis
Estimate mean or median bias, calculate limits of agreement, and detect proportional or constant bias. Analyse‑it follows CLSI EP09‑A3 guidance to ensure your results meet regulatory and clinical expectations.
Limits of agreement
Quantify the expected range of differences between methods and understand the clinical impact of disagreement. Include confidence intervals for the mean bias and limits of agreement.
Detect proportional bias and non‑constant precision
Fit a linear trend to the differences to detect proportional bias, and handle datasets with constant or non‑constant precision across the measuring range.
Support for replicate measurements
Handle singlicate, duplicate, and replicate measurements, correctly estimating within‑subject variation and adjusting limits of agreement accordingly.
Assess clinical impact
See how differences between methods affect interpretation at clinically important decision thresholds, ensuring agreement is acceptable for real‑world use.
Partition into measuring intervals
Split data into intervals with constant or non‑constant precision and apply the appropriate analysis to each segment to understand agreement across the full measuring range.
Runs in Microsoft Excel for easy deployment across your team.
Analyse‑it integrates directly into Excel. It performs all calculations and is validated to ensure accuracy -- no formulas, or cell references break. Import data from instruments, analyse it immediately, then generate publication‑ready reports without learning new software or managing proprietary file formats — significantly faster and more flexible than standalone tools.

We use Analyse-it frequently for our verification and pre-verification work, in accordance with CLSI guidelines for in-vitro diagnostics. It's saved time and effort compared to the hodge-podge of applications we used before, JMP, SAS, etc...

Brian Noland, Ph.D.

Principle Scientist, Product Development

Biosite / Inverness Medical Innovations
We use Analyse-it for the analysis of data necessary to file 510k. We chose Analyse-it because it works in Excel, includes CLSI protocols, and, unlike EP-Evaluator, lets us analyze data directly from equipment without typing.

Thomas D Harrigan, Ph.D.

Technical Product Manager

Alfa Wassermann Diagnostic Technologies
I used Analyse-It for many product development, product troubleshooting, and technology evaluation activities... your product was the easiest to use, was accurate, and produced publication ready reports.

Stanley F. Cernosek, Ph.D.

Clinical Chemistry Reagent Development

Beckman Coulter, Inc.
Analyse-it has been a tremendous help. I've published and presented at national cardiology meetings and couldn't have accomplished most of my research without it. Using Analyse-it, I even found errors or omissions in the work of our statistician!

Regina S. Druz, MD, FACC, FASNC

Director, Nuclear Cardiology

North Shore University Hospital
Although we only scratch the surface of Analyse-it’s capabilities, we have a very high volume of use for the statistics we need. It’s saved us time and the reports look professional.

Michael Savage

Chemistry Supervisor

Baptist Hospital East

* Available in the Analyse‑it Medical, Method Validation and Ultimate editions.

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