Summarize the last chapter, sustain their compliance

The last chapter discusses the use of momentum drivers in mobile applications. These are tools like reminders or special offers that engage users frequently and innovatively. The aim is to integrate the application into the user's daily routine, creating a subconscious habit. The key to maintaining momentum and sustainability is repeated exposure to the product or message. However, the chapter does not provide specific strategies for sustaining compliance. Compliance in this context could mean adhering to app usage guidelines or maintaining consistent engagement with the app.