Hi @Prashant! As you are new to the community, when you get a chance, please introduce yourself here.
ODK-X tools are very customizable. One easy way to customize a logo could be to just to swap out the form_logo.png file in the app>config>assets>img for a same-named file that has the logo you want.
Customized interfaces are very doable especially in ODK-X tables, see here in the docs for examples. But if you are a beginner it may be best to start here with the install and then try the survey learning path before moving to customizing tables.