Why using a mobile app during a visit on Museum or historical Place

I'm a student doing a project concept work about designing an application to use on a historical place. I was researching about what type of questions i would do it to potential users about using an application during a visit. If u could help me on this, i wanna know what kind of experience do u have on using applications during visits in general and i want to know if u like it or not and why.

Thanks in Advance. :)