How do I disable my App Store

You cannot disable or delete the AppStore. It's part of iOS. What you can do is you can log out. You can do this by opening the AppStore, clicking on your Apple ID in the top right corner and then at the bottom choosing "Log out.

Do you have a specific reason why you want to disable the AppStore? Are you running into a problem?

Why should you disable your App Store?

Please specify better your needs, so that we can try helping you (if English is not your native language, please use an online translator).

Thanks and regards

Giulio