Hi criddell,
I'm the iOS dev for Routine. As of now, the iOS application is restricted for iPhone only. Regarding the iPad with keyboard it is definitely something we need to think about, as the usage is closer to a desktop than a phone.
As of now, if we authorized the iPhone version to be used on iPad it would lack the main desktop feature : the console.
Surely if we were to have the console on iPad (and all the features that are not developped on iOS as of now), we probably could release a native MacOS app along.
But realistically it will not be in the near future, as the iOS app is lagging a fair amount behind the electron app.
As of now, we're focusing on iOS on the simplest and most used functionalities as well as features that works well with touch UI.