Q: How can I download watsap on my iPhone 6

Hello Oyedemi61,

Thanks for using Apple Support Communities.

I see from your post that you're trying to locate the App Store on your iPhone in order to download an app.  First, check to make sure that the App Store has not been disabled in your restrictions:

About Restrictions (parental controls) on iPhone, iPad, and iPod touch - Apple Support

If you're still unable to find the App Store, then you can reset the home screen layout of your iPhone.  This will rearrange the app icons on your iPhone, and restore the first screen to its default layout.

Reset iPhone settings. Go to Settings > General > Reset, then choose an option:

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

Reset iPhone settings - iPhone

Take care.