Latest QQ 6 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_4 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Mobile/13G35 QQ/6.5.3.410 V1_IPH_SQ_6.5.3_1_APP_A Pixel/750 Core/UIWebView NetType/2G Mem/117 iOS 9 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 10_2_1 like Mac OS X) AppleWebKit/602.4.6 (KHTML, like Gecko) Mobile/14D27 QQ/6.6.9.412 V1_IPH_SQ_6.6.9_1_APP_A Pixel/640 Core/UIWebView NetType/WIFI iOS 10 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 10_2_1 like Mac OS X) AppleWebKit/602.4.6 (KHTML, like Gecko) Mobile/14D27 QQ/6.6.9.412 V1_IPH_SQ_6.6.9_1_APP_A Pixel/1080 Core/UIWebView NetType/WIFI iOS 10 iPhone