Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
The kindle reader app is only available through the app store.
You cannot load apps to the ipad via any other method than through the apple app store, unless you have "jailbroken" it and installed a non apple operating system.
From your ipad, open the app store, then search for Kindle and you should find the amazon kindle reader app there.