Latest iOS 11 user agents:

User Agent Browser Device
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.9915.1720 Mobile Safari/537.36 Chrome Mobile 48 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.8249.1823 Mobile Safari/537.36 Chrome Mobile 44 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.5214.1031 Mobile Safari/537.36 Chrome Mobile 58 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.6854.1235 Mobile Safari/537.36 Chrome Mobile 53 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.6509.1099 Mobile Safari/537.36 Chrome Mobile 54 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.3769.1821 Mobile Safari/537.36 Chrome Mobile 55 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.8294.1270 Mobile Safari/537.36 Chrome Mobile 52 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.7889.1414 Mobile Safari/537.36 Chrome Mobile 39 iPhone
Mozilla/5.0 (iPhone 92; CPU iPhone OS 11_2_5 like Mac OS X) AppleWebKit/604.3.5 (KHTML, like Gecko) Version/11.0 MQQBrowser/8.3.0 Mobile/15B87 Safari/604.1 MttCustomUA/2 QBWebViewType/1 WKType/1 QQ Browser 8 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.3997.1864 Mobile Safari/537.36 Chrome Mobile 56 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.8410.1574 Mobile Safari/537.36 Chrome Mobile 46 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.5984.1869 Mobile Safari/537.36 Chrome Mobile 49 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2718.1548 Mobile Safari/537.36 Chrome Mobile 44 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.1300.1339 Mobile Safari/537.36 Chrome Mobile 50 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.3091.1650 Mobile Safari/537.36 Chrome Mobile 54 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.9078.1835 Mobile Safari/537.36 Chrome Mobile 40 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.9592.1424 Mobile Safari/537.36 Chrome Mobile 51 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.7992.1115 Mobile Safari/537.36 Chrome Mobile 43 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.7916.1288 Mobile Safari/537.36 Chrome Mobile 60 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.8656.1957 Mobile Safari/537.36 Chrome Mobile 55 iPhone