User Agent

Mozilla/5.0 (iPhone; CPU iPhone OS 14_8_1 like Mac OS X; zh-CN) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/18H107 UCBrowser/13.7.2.1636 Mobile AliApp(TUnionSDK/0.1.20.4) dv(iPh12,1);pr(UCBrowser/13.7.2.1636);ov(14_8_1);ss(414x896);bt(UC);pm(0);bv(0);nm(0);im(0);nt(2);

This user agent belongs to AliApp. Alibaba developed this Application. This Application run on iOS and it renders web contents with WebKit on iPhone.

Application - AliApp

AliApp

Version? @ 32 bit
DeveloperAlibaba
ParentAliApp for iOS
Device TypeMobile Phone

Act as 

Crawler No
Fake No
Anonymized No

Device - Apple

BrandApple
ModeliPhone
Platform apple (32 bit) by Apple Inc
Mobile Yes
Tablet No

Capabilities

Rendering EngineWebKit by Apple Inc (For Google Chrome, iOS (including both mobile Safari, WebViews within third-party apps, and web clips), Safari, Arora, Midori, OmniWeb, Shiira, iCab since version 4, Web, SRWare Iron, Rekonq, and in Maxthon 3.)
Pointingtouchscreen
Javascript Yes
CSS Yes Version: 3
Cookies Yes
Tables Yes
Frames Yes
IFrames Yes
Background Sounds No
Java Applets Yes
VB Script No
Activex No