info@agency-os.ai Design system v0.1 Fast · accessible · tokenized

iOS Development

Native iOS apps that feel like they belong on the platform

SwiftUI, SwiftData, and every Apple framework that matters. Built by engineers who ship to the App Store, not tutorial followers.

The App Store generated $117.6 billion in consumer spending in 2025, up 13.6% year over year. There are 1.8 million apps, with roughly 1,249 new submissions daily. 90% of submissions are reviewed in under 24 hours. The apps that win in this environment are overwhelmingly native. Cross-platform achieves 80 to 90% of native performance, but native apps make up two-thirds of all mobile apps and dominate in the categories that matter most: finance, healthcare, and consumer experiences.

Why native iOS still wins

Approximately 70% of new iOS apps now use SwiftUI, up from 40% in 2023. SwiftData has matured with model inheritance, bug fixes, and Codable properties in predicates. The framework is no longer experimental. It is the default. The apps that win App Store features, that users recommend, that retain at 2x the rate of their competitors are overwhelmingly native.

Native means access to every Apple API without a bridge layer. HealthKit, ARKit, Core ML, widgets, Live Activities, Dynamic Island, App Intents for Siri. Apple’s new Liquid Glass design system, native WebView support, and Chart3D for visionOS are all SwiftUI-first. Cross-platform frameworks wait months for support.

Our iOS engineering approach

Every iOS app we build uses SwiftUI as the UI layer, SwiftData for persistence (or Core Data where legacy compatibility matters), and structured concurrency for async work. We follow Apple’s Human Interface Guidelines not because we have to, but because they produce better apps.

We architect for testability, maintainability, and team handoff from day one. MVVM pattern, protocol-oriented design, and clean separation of concerns. When we hand you the codebase, your team can read, modify, and extend it without a decoder ring.

App Store strategy

Getting into the App Store is not the hard part. Getting featured is. We have had apps featured within a month of launch. The secret is not a secret: follow the guidelines, build something genuinely good, and optimize the metadata. We handle the full submission process including screenshots, descriptions, keywords, and review guideline compliance.

FAQ

Fair questions.

Ask us directly
Should I build native iOS or cross-platform?

If your app needs deep platform integration, top-tier performance, or App Store editorial consideration, go native. If you need to ship on iOS and Android simultaneously with limited budget, cross-platform (React Native) is a reasonable trade-off. We help you make that decision in the discovery phase.

How long does it take to build an iOS app?

8 to 14 weeks for a focused MVP. 14 to 24 for a full product. We provide a real estimate in week one with no padding.

Do you build for iPad and Mac too?

Yes. SwiftUI makes multi-platform significantly easier. A well-architected SwiftUI app can run on iPhone, iPad, Mac (via Mac Catalyst or native), and Apple Watch with shared business logic and platform-specific UI where needed.

What version of iOS do you target?

We typically target the current and previous major iOS version (e.g., iOS 18 and iOS 17). This covers 95%+ of active devices while allowing us to use modern SwiftUI APIs.

Related: SwiftUI Development · Android App Development · MVP Development

Next step

Build something worth putting on the home screen

Start a conversation
Translate: