Category,Detail Concept,"Building one application/system that runs flawlessly across multiple environments (iOS, Android, Web, Desktop) or seamlessly connecting incompatible systems (CRM to ERP, App to API)." Technology (App),Frameworks like Flutter and React Native (for mobile) to reduce development time/cost. Technology (System),"APIs, Middleware, iPaaS (Integration Platform as a Service) to ensure data flow between systems." Core Goal,"Cost-Efficiency (one codebase), Faster Time-to-Market, and Seamless Data Flow across the business."Type,Price Range (USD),Notes "Training Course (e.g., Mobile App Development Bundle)",$30 – $500,"Varies widely. The specific ""Mobile App Development (Android & Cross-Platform)"" course found was priced around £27 - £49 (approx. $34 - $62 USD)." Simple Cross-Platform App (MVP),"$5,000 – $20,000","A basic app with limited features, often built by offshore teams using frameworks like Flutter or React Native." Advanced Cross-Platform App,"$25,000 – $75,000+","Complex apps with custom features, high security, and extensive third-party integrations (e.g., payment gateways, custom APIs)." "System Integration Service (e.g., CRM-ERP connection)","$10,000 – $100,000+","Cost depends on the complexity of the data mapping, the number of systems involved, and regulatory compliance needs."