A/B Testing Calculator
Sample size & significance
About
This app assists in planning and evaluating A/B tests by calculating required sample sizes for reliable results and determining test winners with statistical significance. It offers clear explanations and supports comparing up to five variants.
What's New in A/B Testing Calculator
1.5
July 14, 2026
Enter conversions as percentages. On the Test results screen, each variant's conversions can now be entered the way your report shows them — as a raw count or as a percentage. Your input stays exactly as typed: change the sample size and the app recalculates the other value, never the one you entered. Clearer error messages when entering percentages, and small polish throughout.
MoreFAQ
What is the A/B Testing Calculator used for?
The A/B Testing Calculator helps you determine the necessary sample size for your A/B tests before you run them. After the test, it evaluates the results to identify a statistically significant winner.
Can the A/B Testing Calculator handle multiple variants?
Yes, the A/B Testing Calculator allows you to compare up to five variants simultaneously, providing clear verdicts on which variant performs best.
Does the A/B Testing Calculator explain statistical jargon?
No, the A/B Testing Calculator provides clear explanations without using complex statistical jargon, making it accessible for users of all backgrounds.
What types of A/B tests can the A/B Testing Calculator evaluate?
The A/B Testing Calculator works for various metrics including open rates, click rates, and order conversion rates, helping you understand the performance of different test variants.
What devices is the A/B Testing Calculator available on?
The A/B Testing Calculator is available for both iPhone and iPad devices, offering flexibility for users on the Apple ecosystem.
How often is the A/B Testing Calculator updated?
The A/B Testing Calculator was last updated on July 14, 2026, indicating recent development and potential for ongoing improvements.
Is the A/B Testing Calculator free to use?
Yes, the A/B Testing Calculator is completely free to download and use, with no in-app purchases or advertisements.
What is the user sentiment for the A/B Testing Calculator?
User sentiment appears very positive, with the app holding a perfect 5.0-star rating from one review, suggesting high user satisfaction.
