According to the information on the official website of the Quzhou Network Governance Platform, Apple's cell phone developer platform has adjusted the auditing standards for the release of apps, and the Quzhou line app has been taken down due to the fact that the development architecture does not meet the new standard of "targetSdkVersion must be greater than 26". The Quzhou line app was taken down because the development architecture did not meet the new standard "targetSdkVersion must be greater than 26".

Quzhou line app is a transportation service platform and travel ecosystem focused on by Zhejiang Quzhou Public Transportation Group in line with the concept of being the most easy-to-use travel app in Quzhou. It provides Quzhou citizens with convenient transportation mobile payment, real-time bus bike inquiry, customized buses, shuttle bus ticketing, self-service chartered buses, smart driving school, news information and other convenient services, with full technical support provided by Hangzhou Jiexing Network Technology Co.