Mobile App Development Roadmap

Build and publish a real Android or iOS app: language, UI, data, architecture, release.

8 milestones · ~111 hours total

1. 1

   A language: Kotlin (Android) or Swift (iOS)

   ~25h

   Syntax, null safety/optionals, collections, classes and closures/lambdas.

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2. 2

   Declarative UI: Jetpack Compose or SwiftUI

   ~20h

   Composable views, layouts, theming and previews; think of UI as a function of state.

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3. 3

   State, navigation and app structure

   ~12h

   Screens, back stack, passing data, and where state should live.

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4. 4

   Networking and JSON

   ~12h

   Calling REST APIs off the main thread, parsing JSON, loading and error states.

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5. 5

   Local storage

   ~10h

   Room/SQLite or Core Data, preferences, and an offline-first mindset.

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6. 6

   Lifecycle, permissions and background work

   ~10h

   Activity/scene lifecycle, runtime permissions, notifications and WorkManager/BackgroundTasks.

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7. 7

   Architecture: MVVM and dependency injection

   ~12h

   Separate UI, state and data; make code testable.

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8. 8

   Testing, performance and release

   ~10h

   Unit and UI tests, profiling, app signing, and publishing to the Play Store / App Store.

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