根據文章: What does "Safari (in-app) in Google Analytics I did some tests on a separate page available only for me using IOS 8.2 and updated 1Password and Facebook App: General Safari browser is reported as Safari 8.0: Mozilla/5.0 (iPhone; CPU iPhone OS 8_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12D508 Safari/600.1.4 1Password is reported as Safari 6.0: Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10B329 Safari/8536.25 Facebook App is reported as Safari (in-app) Mozilla/5.0 (iPhone; CPU iPhone OS 8_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12D508 [FBAN/FBIOS;FBAV/27.0.0.10.12;FBBV/8291884;FBDV/iPhone7,2;FBMD/iPhone;FBSN/iPhone OS;FBSV/8.2;FBSS/2; FBCR/Play;FBID/phone;FBLC/en_US;FBOP/5] Tested on 2015.03.31 (yyyy.mm.dd) 由上述得知, Safari (in-app) 是表示來源為Facebook App. 根據文章: Amusing Analytics for December For purposes of the followi...