Can I use my own iPad or iPhone instead of the ChowNow tablet?

Absolutely, you can download the ChowNow Business Manager app in the App Store here: https://apps.apple.com/us/app/cn-tablet/id581010873

The ChowNow Business Manager app is compatible with any iPhone or iPad running iOS 15 or newer.

To check your device eligibility go to Settings >> General >> About >> iOS version.