Place-based cues can be an important trigger of smoking behavior, therefore the investigators wish to learn more about the influence of the built environment on individual smoking behavior. This is to facilitate dynamic support during the post-quit phase. MapMySmoke is a mobile phone application that enables the capture of spatial data during smoking and craving events. These data will be used to create individualized support plans via the app.

Investigators know that place-based cues play an important role in the triggering of smoking events, and even in relapse events. It follows that providing individual smokers with spatially explicit and temporally dynamic intervention messages may support smoking cessation attempts.

The investigators have built a mobile phone application-MayMySmoke-that allows individuals to capture each smoking event at the times and places they occur, and tag the events with qualitative metadata. The app also allows individuals to document and describe craving events. The goal of the app is first to understand an individual's smoking profile, and second to support them with dynamic text messages.

The investigators are deploying the app in a clinical setting-the United Kingdom's National Health Service, within the Fife region of Scotland. Using two feasibility studies of increasing size, the investigators are attempting first to get initial feedback on the app, and then to improve the app and deploy it across a broader community of smokers.

Though the app is targeted to smoking behavior, it is possible to extend it to include other negative health behaviors that may have a spatial component.

Inclusion Criteria:

• National Health Service (Fife) Patients
• Self-reported tobacco smoker
• Stated intention to quit smoking
• English speaker

Exclusion Criteria:

• Mental illness
• learning difficulty