How do I reinstall the Apple camera app on my iPhone

Hello, jamesfromeaston.

Thank you for using Apple Support Communities.

From your post, we understand you want to reinstall the Camera app. We'd be glad to help. Follow the steps in this article: Redownload apps, music, movies, TV shows, and books

If your Camera app isn't deleted but isn't found on the Home Screen, check for restrictions: Use parental controls on your child's iPhone, iPad, and iPod touch

You may also want to check out this article: Organize the Home Screen and App Library on your iPhone

If the app is still installed and there are no restrictions but still can't be found on the Home Screen, you may need to reset the Home Screen Layout: Return iPhone settings to their defaults

"Reset Home Screen Layout: Returns the built-in apps to their original layout on the Home Screen".

Keep in mind with this reset, it will rearrange all apps on your Home Screen, not just the Apple ones.

Best regards.

As the Camera app cannot be uninstalled, it's there somewhere. I suggest you start with the article on organizing your home screen given above.