Thanks for posting in the Community, @jilljohnson.
Right now, the option to pay your bills online through the mobile app is unavailable. I'd recommend accessing your QuickBooks Online (QBO) account via a web browser. Then, sign up for Online Bill Pay. This way, you can pay bills online for a quicker transaction.
I can see how this option would be useful for your business. This lets you pay your bills anytime and anywhere through your device. Rest assured that I'll personally submit your suggestion to our product developers. They can find a way to add this feature to the app for future releases.
I'd suggest visiting this website: QuickBooks Mobile Blog. It helps you learn more about our mobile app innovations.
The supported features vary on each mobile device. To compare them, please use the chart through this article: Features Availability in Mobile App.
You can count me in if there's anything else you need. Take care always, @jilljohnson.