How do I direct 1Password to open and log onto an app on my iphone rather than a website?

Hi @EarthBall

There isn't a mechanism to "Go & Fill" for 3rd party apps on iOS, but if you launch the app you want to log into directly (instead of starting in the 1Password app) you can then use the iOS autofill system to fill your credentials from 1Password into that app. Additional information on autofill can be found here:

Use 1Password to fill and save in apps on your iPhone and iPad

I hope that helps!

Ben