Architecture
Building Scalable iOS Apps with Clean Architecture
A practical guide to separating presentation, domain and data concerns so an iOS codebase can grow without becoming fragile.
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iOS engineering notes
Lessons from building products that have to work in the real world.
Twelve practical guides about architecture, SwiftUI, concurrency, testing, payments, security, release safety and production reliability.
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Engineering ideas you can apply.
Each article focuses on decisions, trade-offs and production lessons rather than framework demos alone.
Architecture
SwiftUI
SwiftUI in Production: Lessons That Keep Apps Reliable
Practical patterns for state ownership, navigation, reusable components, performance and UIKit interoperability in real SwiftUI applications.
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Payments
Integrating Apple Pay in an iOS App: A Reliable End-to-End Flow
An implementation-oriented view of Apple Pay, from merchant setup and payment requests to backend authorization, idempotency and testing.
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Architecture
Designing a Multi-Tenant iOS Application Without Forking the Product
How to share one iOS codebase across brands using runtime configuration, feature flags, resource boundaries and safe tenant-specific overrides.
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Travel Tech
Building Reliable Travel Booking Flows on iOS
A state-machine approach to search sessions, selections, pricing, payment, confirmation and recovery in travel and ticketing products.
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Engineering
Using AI Tools in an iOS Development Workflow—Without Losing Engineering Judgment
A practical workflow for using coding assistants in planning, implementation, testing and review while keeping security and ownership intact.
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Concurrency
Swift Concurrency in Production: Async/Await, Cancellation, and Actors
A production-focused guide to task ownership, cancellation, actors, MainActor isolation and predictable async flows in modern iOS applications.
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Architecture
Modular iOS Architecture: When and How to Split an App
A practical approach to feature modules, dependency direction, public APIs and incremental modularization without turning the project into build-system overhead.
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Testing
Testing SwiftUI Apps: ViewModels, Use Cases, and Critical UI Flows
A balanced testing strategy for SwiftUI apps that protects business rules, async state transitions and the user journeys that matter most.
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Security
Building Secure API Integrations on iOS
Practical security boundaries for authentication, token storage, request handling, logging and resilient API communication in iOS applications.
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Delivery
Feature Flags and Safer iOS Releases
How to use feature flags, safe defaults, staged rollouts and kill switches to separate code deployment from product release on iOS.
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Reliability
Monitoring iOS Apps in Production: Crashes, Analytics, and Performance
A practical observability strategy for release health, crash diagnostics, product analytics and performance monitoring in production iOS apps.
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