This is a refreshingly practical guide that treats mobile app maintenance as a strategic budget line, not an afterthought. The emphasis on scoping maintenance work—OS updates, SDK deprecations, security patches, feature evolution—is exactly what business leaders need to plan for. Too many organizations budget for the initial build and then get surprised by year-two costs. The point about best practices (automated testing, CI/CD, observability, dependency management) being cost-savers over time is critical. A must-read for CTOs and product owners.