Most Chinese white-collar workplaces clock in via
钉钉 (Dīngdīng, DingTalk by Alibaba) or
企业微信 (Qǐyè Wēixìn, WeCom by Tencent), often with GPS or facial recognition.
打卡 also means 'check in' on social media (
在咖啡店打卡 dǎkǎ at a cafe), but the workplace meaning is the original.
