Scope matters more than screen count
A visually small app can contain complex permissions, payments and integrations, while an app with more screens can be technically simpler. Timeline estimation follows functions, data and roles.
Readiness reduces rework
A clear goal, available content, fast decisions and known integration requirements reduce waiting and redesign. Persistent uncertainty adds time even when coding itself is fast.
Plan in deliverable stages
Instead of waiting for one large delivery at the end, split the work into discovery, scope, design, implementation, testing and launch with clear review points.
Before starting a project
Use these questions to structure the idea, then send what you have. You do not need a complete technical specification before contacting SDS.