1Password, by AgileBits, has been updated to take full advantage of iOS 8's new security features and App Extensions. Now, with Touch ID, you can unlock 1Password with just a tap.
You can also link 1Password with all of your other supported apps using the App Extensions and never have to remember a long list of passwords. It even works with Safari now, so as you browse the app can automatically fill out login requests for you without having to open 1Password.
You can check out the new, improved 1Password for free on the App Store.