This document discusses how to build recurring revenue services for a mobile app development business. It outlines the challenges of relying solely on project-based work and proposes recurring services as a solution. Specific recommendations include: - Mapping services to the typical app lifecycle to meet customer needs over time - Starting simply and making services progressively more complex - Clearly defining what each service level includes and excludes to facilitate upselling - Positioning services as an integral part of the process rather than an afterthought - Focusing on opportunities to increase sales, close more deals, and obtain new work from existing clients