Microapps architecture in Swift. Scaling.
Article Summary
Majid Jabrayilov explores how microapps architecture can solve the scaling nightmare that plagues large iOS codebases. His approach turns monolithic apps into composable, independently testable modules.
As iOS apps grow, build times balloon and team coordination becomes chaotic. Majid breaks down a microapps architecture pattern that splits features into standalone modules with their own navigation, dependencies, and lifecycle. Each microapp becomes a mini-app that plugs into the main container.
Key Takeaways
- Each microapp owns its navigation flow using dedicated coordinators and routers
- Dependency injection containers isolate feature dependencies from the main app
- Microapps communicate through protocols, preventing tight coupling between modules
- Feature teams can build and test modules independently without full app builds
- The main app becomes a thin shell that composes microapps together
Microapps architecture transforms monolithic iOS apps into composable modules that scale with team size while maintaining clean boundaries and fast iteration cycles.
About This Article
When apps grow to over 100 modules, a single Package.swift file turns into thousands of lines that become hard to maintain. Xcode also starts to slow down when processing the dependency graph of such large packages.
Majid Jabrayilov suggests moving to a package-per-feature approach. Each feature gets its own package with internal modules for domain, UI, and services. This lets you set up specific dependencies between modules across different packages.
Keeping packages smaller this way preserves both developer experience and compilation speed. Teams can scale from 20 packages up to 100+ modules without losing modularity or testability.
