What is the best app test type to perform on a native mobile application? Currently I'm developing a tourism Android application, and so far I've decided to perform A/B testing with questionnaires, and a propitiatory click/time logging API to monitor user scenario walkthoroughs, but the client requires at least two types of tests to be performed. I thought about card sorting, but there isn't much information architecture in my application, like on a website.
What other test could I perform to get some tangible results?
I'm searching for a second type of test to perform, for ex. card-sorting, or something else that would prove that the prototype that I'm making is user friendly.