Mobile App Architecture Consulting
Architecture mistakes don't cost much at decision time—but cost dearly 6–12 months later when development velocity halves and onboarding a new developer takes a week just to add a screen.
Typical Situations Starting Consulting
"We want to add offline mode"—but the app lacks a network abstraction layer. ViewModels call URLSession/Retrofit directly, no caching. Adding offline means rewriting a third of the app.
"Slow build times"—monolithic app without modularity compiles in 8 minutes per change. Developers waste 30–40 minutes daily waiting for builds.
"We want a second target/flavor"—for white-label or another brand, but the codebase mixes business logic with brand specifics. Everything is tangled in one target.
"Onboarding takes three weeks"—no explicit architecture, magical dependencies through static singletons, non-obvious side effects.
What Architecture Consulting Provides
Not "let's rewrite everything as Clean Architecture." Current state analysis → identify specific bottlenecks → recommendations with effort and risk estimates → change roadmap.
iOS: assess layer separation (Presentation / Domain / Data), Swift Concurrency vs Combine vs callbacks, modularity via SPM vs CocoaPods, testability (can you write unit tests on UseCase without simulator).
Android: Clean Architecture with domain/data/presentation modules, Hilt vs Koin vs manual DI, ViewModel lifecycle, coroutines and Flow in repository layer, Jetpack Navigation for deep linking.
Flutter: BLoC vs Riverpod vs GetX—not "which is best," but what fits team and task. Riverpod 2.x with code generation—less boilerplate, compile-time safety. Modularity through Dart packages. Separate logic from UI via use_case / repository pattern.
Real case: React Native app, 2 years development, 5-person team. Complaint: "it works but we're afraid to touch code." Audit revealed: Redux store with 40 reducers without normalization (Normalizr unused), business logic in components and thunks simultaneously, unclear "where data comes from." Recommendation: don't fully rewrite, introduce domain/ layer with pure functions, gradually move logic from components. In 6 weeks, part of team applied the pattern in two features, feature addition velocity increased.
Consulting Formats
Single session—3–4 hours technical discussion, code review, identify main issues and recommendations. Good for: checking before new project, quick audit before fundraising.
Extended audit—1–2 weeks: study codebase, interview team, detailed document with problem prioritization and action plan.
Ongoing support—regular sessions (1–2 weekly) during architecture changes: code review on key PRs, answer questions throughout refactoring.
Cost and timeline determined after initial conversation about your task.