WhatsApp on iPad what’s up with that

As iOS and iPad and Mac OS becomes nearer and nearer to being a single platform and most of all people communicating with each other, the WhatsApp platform is likely the most common platform, why is it my iPad has to use ad filled 3rd party apps to use WhatsApp? I know it’s google but why iPhone and not iPad. This doesn’t make sense and seems I am forced to participate in a data ******* war between Apple and Google. I’m sure I’m not the only person frustrated with this. Across platforms and country borders, WhatsApp is number 1 with no alternative as well rooted as WhatsApp. Frankly I would even pay a small fee to buy the app to use it like the normal app on my iPhone. Common apple. What about your customers!