Smoke is a free iPhone app developed by zhang jieyi in the Lifestyle category, specifically under Health & Fitness. This app serves as a quit smoking assistant, helping users track their smoking habits and plan their journey to quit smoking.

The main feature of Smoke is its ability to calculate and display your smoking status on a daily basis. It provides data on the number of cigarettes smoked and the amount of money spent on smoking, categorized by week, month, and overall. This information allows users to compare their smoking habits to those of other smokers and make informed decisions about quitting.

The app has seen recent updates, including the addition of the ability to view WeChat in the club feature. It also now includes a cigarette price query function, as well as tactile feedback. Users can now also bind their third-party accounts for login purposes, such as Apple and WeChat.

Other notable features of Smoke include a personal homepage, monthly data comparison, and the ability to add a quit smoking diary. The app also offers different theme templates, live voice support, and the option to join smokers clubs.

Overall, Smoke is a helpful tool for individuals looking to quit smoking. Its comprehensive tracking and analysis features provide valuable insights and support for those on their journey to a smoke-free life.