Chinese apps TikTok, Temu and Shein take on Amazon in US in e-commerce push during holiday shopping season

• Pinduoduo has seen early success with its Temu app, which briefly topped download charts in November, as ByteDance launched a TikTok shopping feature in the US
• The companies are trying to follow the success of fast-fashion e-tailer Shein, but analysts say taking on Amazon on its home turf is an uphill battle