As I said, I was really excited about this. So far, it has not quite worked out the way I expected.
The Safari extension prompts me for my master password every single time, even though I have set the master password timeout to 30 days.
The app itself sometimes lets me in via Touch ID but usually asks for my master password. I understand that the app needs to be running in order to keep the master password in RAM, but something doesn’t seem right here. It happens even in situations where it seems impossible for the app to have been quit by the OS.
There is an option in the Advanced preferences to store the master password in the iOS keychain. This seems like it would address the problem, but it also seems potentially dangerous. It shouldn’t be necessary unless there is a memory shortage.
In Riposte (which I’m trying since Netbot crashes on iOS 8), there is indeed a button to access 1Password and search for “app.net”. However, there didn’t seem to be a way to get it to enter the username and password; I had to copy and paste them.
Surprisingly, 1Password lets me use third-party keyboards to type usernames and passwords, though not the master password.
Update (2014-09-23): I heard back from AgileBits support. The main issue seems to be that (a) a new instance of the 1Password extension is launched each time it’s used, so it cannot remember anything between invocations, and (b) the extension cannot communicate with the running 1Password app to get the master password. Therefore, the extension will prompt for the master password every time unless you enable the option in the 1Password app to store the master password in the iOS keychain.
Update (2014-10-04): Even when using the option to store the master password in the iOS keychain, I am finding that the 1Password app pretty regularly prompts me to enter the master password instead of offering me Touch ID.