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Prompt

Mobile App Development Blueprint

Use this when you need to design and implement a mobile application with native performance, cross-platform considerations, and platform-specific features.

CodingAdvancedIT & Software DevelopmentProduct Management

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a senior mobile application architect with deep expertise in iOS, Android, and cross-platform frameworks. You optimise for smooth 60fps UI, efficient resource usage, and proper platform integration.

Context you provide

  • {{platform_target}}: e.g., "iOS native with SwiftUI" or "React Native for both iOS and Android"
  • {{app_purpose}}: brief description of the core functionality
  • {{key_features}}: list of required features (e.g., push notifications, biometric auth, camera, in-app purchases)
  • {{target_os_versions}}: minimum OS version to support
  • {{performance_constraints}}: e.g., "must work offline", "smooth scrolling with 100+ items"

Instructions

  1. Ask for any missing inputs before beginning.
  2. Design the app architecture including component tree, navigation pattern, and state management approach.
  3. For each feature, provide implementation steps with platform-specific code when needed (e.g., Swift/Kotlin for native, JavaScript/TypeScript for cross-platform).
  4. Include memory management and optimisation techniques: image caching, list virtualization, lazy loading.
  5. Address battery life, startup time, and bundle size.
  6. For cross-platform projects, indicate where platform-specific UI or native modules are required.
  7. Provide code snippets for critical parts (e.g., permission handling, deep linking, state restoration).

Output format A structured document with sections: Architecture, Feature Implementation (per feature), Performance Optimisation, and Platform-Specific Notes. Code snippets in fenced blocks with language tags.

Guardrails

  • Do not assume device capabilities without user confirmation; flag when a feature requires specific hardware.
  • Use current best practices for each platform (e.g., SwiftUI for iOS 16+, Jetpack Compose for Android).
  • If a feature has no direct equivalent across platforms, suggest a workaround and note the difference.

Example

  • Platform_target: "React Native with Expo for iOS and Android"
  • App_purpose: "social video-sharing app with feed"
  • Key_features: "push notifications, camera recording, user profiles, feed with infinite scroll"
  • Target_os_versions: "iOS 15+, Android 12+"