Optimize the response and conversion rates of your direct & digital marketing campaigns by using this DM Calculator.

The most complete and easy-to-use app for professionals in direct and digital marketing who want to optimize response and conversion rates of direct mail and email campaigns, search engine ads, banners, web design and landing pages through A/B testing in the right numbers.

A must-have if you want to determine the right sample sizes needed for a perfect test and calculate the accuracy, reliability and significance of your test result.

The DM Calculator helps you calculate:
sample size for your test
accuracy of your test result
reliability of your test result
significance of the difference between two test results

This app will save you lots of money you would otherwise have wasted on tests with sample sizes that are larger than required. It also prevents you from ending up with test results that are inaccurate or unreliable because your sample size was too small.

EXTRA - this app also connects you to:
tips & tricks
ideas for tests in direct mail, email, banners, web design and landing pages
tools & checklists
Pick the Winner – examples of tests + results

The DM Calculator was developed, designed and published by Frans Reichardt, an expert with over 25 years of experience in direct and digital marketing and author of ‘The Complete Guide to Testing in Direct & Digital Marketing’.

This app is being published in Chinese, Dutch, English, French, German, Russian and Spanish.