Adalysis has many ways of running A/B tests for your ads. Some of the tests are run automatically, whereas others require manual configuration.
In the A/B Ad Tests section, there are two main options: Single Adgroup tests and Multi Adgroup tests:
Use Single Adgroup tests if you want to compare how a particular ad performs in comparison with other ads in the same adgroup. By default, whenever you have more than 1 ad in any adgroup, we will run these tests daily (you are not required to set anything up manually) and will notify you whenever a statistically significant result is achieved.
Use Multi Adgroup tests when you want to compare the performance of individual components of your ads across multiple adgroups. For example, if you have different Headline 1 in your ads, you may want to know which Headline 1 version performed best across your campaigns. Alternatively, use Multi Adgroup testing for aggregate data about your ad performance based on a common label. For example, you may want to see how Responsive Search Ads perform in comparison with standard ads. You can label all your RSAs and run an A/B test comparing all ads in your campaign(s) with this label versus ads without the label.