Cannot find flashlight on my iPad,,,do I have to add it from the App Store first

What model iPad do you have?

Flashlight is available on:

iPad Pro 12.9-inch (2nd generation and later), iPad Pro 11-inch (1st generation and later), iPad Pro (10.5-inch), and iPad Pro (9.7-inch).

See here: How to use the flashlight on your iPhone, iPad Pro, or iPod touch - Apple Support

From the top right hand corner of your iPad screen swipe down to open Control Center. Do you see a flashlight icon?

If you don't see the flashlight icon:

1. Go to Settings > Control Center.
2. Tap Customize Controls.
3. To add controls, tap the Add button . To remove controls, tap the Remove button , then tap Remove.

You can only have a flashlight if your ipad has a camera flash. And it may only be the pro models that have a flash so can have a flashlight.

Its not an App like others on your îPhone. Its a widget in Control Center.

If you actually have an iPad Pro 9.7” it should be there.

You can verify what you have in Settings->General->About->Model / Model Name.