Latest 1Password 3 user agents:

User Agent Platform Device
Mozilla/5.0 (iPad; CPU OS 9_3_5 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) 1Password/3.7.2/370204 (like Mobile/8C148 Safari/6533.18.5) iOS 9 iPad
Mozilla/5.0 (iPad; CPU OS 9_3_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) 1Password/3.7.2/370204 (like Mobile/8C148 Safari/6533.18.5) iOS 9 iPad
Mozilla/5.0 (iPad; CPU OS 6_1_2 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) 1Password/3.7.2/370204 (like Mobile/8C148 Safari/6533.18.5) iOS 6 iPad
Mozilla/5.0 (iPad; CPU OS 6_0_1 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) 1Password/3.7.2/370204 (like Mobile/8C148 Safari/6533.18.5) iOS 6 iPad
Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) 1Password/3.6.5/365004 (like Mobile/8C148 Safari/6533.18.5) iOS 5 iPad