iOS Development
We engineer Swift and SwiftUI applications that pass App Store review, delight users, and scale with your business — built with the architecture to last.
What We Build
From consumer apps to enterprise tools, our iOS practice covers the full technical spectrum of what the Apple platform makes possible.
Universal applications optimised for all Apple device sizes, orientations, and input modalities, including Apple Pencil and keyboard support.
Robust networking layers, REST and GraphQL integration, offline-first data handling, and background sync — engineered reliably.
Engagement-driving notification systems, rich media notifications, and notification action handling with full APNs integration.
StoreKit 2 integration, subscription management, receipt validation, and monetisation flows that maximise conversion and retention.
Keychain storage, biometric authentication, data encryption, and full compliance with App Store privacy requirements and GDPR.
XCTest unit and UI testing suites, TestFlight beta distribution, and structured QA processes before every App Store submission.
Technical Foundation
We do not write code to get the job done today. We write code that your team — or ours — can maintain, extend, and scale for years.
Clear separation of concerns, dependency injection, and layered architecture that makes code testable and predictable.
Modern Swift codebase using current language features. SwiftUI for new interfaces where appropriate, with UIKit expertise where needed.
Feature modules, clear interface boundaries, and Swift Package Manager integration for a maintainable, scalable project structure.
App Store Readiness
We build strictly within Apple Human Interface Guidelines to minimise review friction and accelerate submission approvals.
Full privacy manifest declarations, required reason API documentation, and accurate App Privacy nutrition labels.
App name, subtitle, descriptions, keywords, and screenshots — all crafted to perform in App Store search, not just satisfy review.
Structured TestFlight beta periods with internal and external testers, feedback integration, and staged rollouts at launch.
Performance & Security
Every Crown iOS project is profiled for memory, CPU, battery, and network efficiency — because a slow or unstable app loses users and ratings fast.
Instruments profiling for memory leaks, retain cycles, and CPU overhead throughout development — not just before submission.
Structured error handling, crash reporting integration, and pre-release QA targeting crash-free rates above 99.5% from day one.
Keychain for sensitive storage, certificate pinning where appropriate, and zero plain-text credential exposure in logs or storage.
Offline-first architecture, graceful degradation on poor connections, and background task management for data-heavy operations.
Let's build your iOS product
Tell us what you're building and we'll put together an initial approach — no commitment required.