Native iOS Apps in Swift - Built for the App Store, iPhone, iPad & Apple Watch
We build production-quality native iOS applications in Swift and SwiftUI - from consumer MVPs to enterprise mobility platforms. iPhone, iPad, Apple Watch, and Apple TV. App Store-ready, Human Interface Guideline-compliant, and architectured for long-term maintainability.
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iOS App Development Services We Deliver
From Swift MVPs and SwiftUI consumer apps through Objective-C migrations, Apple Watch and Apple TV development, ARKit/Core ML integrations, and enterprise MDM iOS apps - our iOS engineers cover every dimension of the Apple platform.
Custom iOS App Development
End-to-end native iOS app development in Swift and SwiftUI - from architecture, UI implementation, and Apple platform API integration through App Store submission and post-launch maintenance. Consumer apps, B2B tools, and enterprise iOS solutions for iPhone, iPad, and Apple Watch.
iOS MVP & Rapid Prototyping
A production-quality iOS MVP on the App Store in 10–16 weeks. We scope the core user journeys, design a polished SwiftUI interface following Apple HIG, integrate backend APIs, and distribute TestFlight builds throughout development - ready for real user feedback and investor demos.
Swift & SwiftUI Development
Modern native iOS development using Swift 5.x, SwiftUI declarative UI, Swift Concurrency (async/await and Structured Concurrency), Combine for reactive streams, and Swift Package Manager - with clean MVVM or TCA architecture and a comprehensive test suite.
iPad & Universal App Development
iPad-first and universal iOS apps with adaptive layouts using SwiftUI Layout, split-view navigation, drag-and-drop, Apple Pencil support (PencilKit), multi-window for iPadOS, Stage Manager compatibility, and keyboard/pointer support for productivity-focused tablet apps.
Apple Watch & watchOS Apps
Native watchOS apps with complications, always-on display support, WidgetKit for Smart Stacks, background workout sessions via HealthKit, WatchConnectivity for iPhone sync, and high-performance watch UI built with SwiftUI for the always-on Retina display.
Objective-C → Swift & UIKit → SwiftUI Migration
Phased iOS modernisation: migrate Objective-C to Swift with interop bridging, introduce SwiftUI alongside UIKit using UIHostingController, adopt Swift Concurrency in place of callbacks and Combine, and upgrade deprecated APIs - without stopping feature delivery.
Swift, SwiftUI & the Full Apple Platform Ecosystem
From Swift Concurrency and SwiftUI through Core Data, ARKit, Core ML, StoreKit 2, HealthKit, and Fastlane/Xcode Cloud CI/CD - every modern iOS and Apple platform technology, architected for performance and maintainability.
Engagement Models for iOS Development
Whether you need a dedicated iOS team for a long-term app roadmap, a fixed-price Swift MVP, or flexible T&M sprints for an iterative consumer app - we structure the engagement to match your product stage and budget.
- Full-featured native iOS app with ongoing roadmap
- Long-term iOS product with monthly feature releases
- Replacing in-house iOS capacity at lower cost
- iOS app spanning iPhone, iPad, and Apple Watch
Ongoing - scale up or down per quarter
- iOS MVP with defined screens and user stories
- Objective-C to Swift migration with agreed scope
- Specific iOS feature (Apple Pay, ARKit, StoreKit)
- Legacy iOS app upgrade to current iOS SDK
Best for projects 10–26 weeks
- iOS architecture audit and modernisation planning
- Iterative consumer app with user-research-driven scope
- Adding ARKit, Core ML, or HealthKit to existing app
- iOS performance profiling and optimisation engagement
Start in 1 week - no lengthy onboarding
Our iOS App Development Process
Six stages from Swift architecture and Apple HIG design through biweekly TestFlight builds, Apple platform API integration, Instruments profiling, and managed App Store launch - with a working app on your iPhone from sprint one.
We begin with a structured discovery of your app concept, target Apple devices (iPhone, iPad, Apple Watch, Apple TV), Apple platform API requirements (HealthKit, ARKit, StoreKit), backend and API design, and App Store strategy. We define the Swift architecture (MVVM, TCA, or feature-first), data layer (Core Data, SwiftData, or Realm), navigation structure, and concurrency model before sprint planning begins.
Our designers produce high-fidelity Figma prototypes following Apple Human Interface Guidelines - SF Symbols, system fonts, native iOS navigation patterns (NavigationStack, Tab Bar, sheets), and Dynamic Type support. We define a SwiftUI component library with design tokens (colour, typography, spacing) before development so sprint velocity is maximised from day one.
iOS development runs in two-week sprints. Every sprint you receive a working TestFlight build covering the sprint scope - install it on your own iPhone or iPad and test the real app throughout development. Sprint reviews include a live demo with screen recording for async stakeholder review. No waiting until the end to see the product.
Backend integrations are built in parallel with iOS development - URLSession async/await REST or Apollo GraphQL clients, Firebase Auth and Firestore/FCM configuration, StoreKit 2 subscription and in-app purchase setup, Apple Pay payment flows, Sign in with Apple, MapKit and Core Location, HealthKit read/write permissions, and third-party SDK setup.
Comprehensive QA across physical iPhone and iPad devices covering multiple iOS versions (iOS 16–18). Xcode Instruments profiling for CPU, memory allocations, leaks, and energy impact. SwiftUI render profiling. App Store Review Guidelines compliance check - privacy manifests, required reasons APIs, data collection declarations in App Store Connect, and content rating submission.
Managed App Store Connect submission - phased release, App Store listing optimisation (title, subtitle, keywords, screenshots, preview video), and response management if Apple Review requests changes. Post-launch monitoring via Firebase Crashlytics, App Store Connect analytics, and Firebase Analytics. Defined sprint cadence for ongoing feature delivery and yearly iOS SDK updates.
What Our iOS App Clients Say
Trusted by consumer app founders, healthcare and fintech product teams, and enterprise mobility leaders across the US, UK, and Australia.
We had a legacy Objective-C app with a 2.1 App Store rating and constant crash reports on new iOS versions. 1Solutions migrated it to Swift and SwiftUI in phased sprints while shipping new features simultaneously. The rating climbed to 4.8 and our monthly active users doubled in six months post-launch.
1Solutions built our iOS app for healthcare practitioners - HealthKit integration, HIPAA-aware data handling, offline Core Data sync, and Apple Watch support. The App Store review process was smooth and they handled every compliance requirement correctly. Our practitioners call it the best clinical app they have ever used.
We needed an ARKit-powered iOS app for retail product visualisation - placing furniture in a room at scale. 1Solutions delivered a pixel-perfect SwiftUI app with smooth ARKit anchoring in 14 weeks. Our conversion rate on product pages with the AR feature is 3x higher than without it.
Why Choose Us for iOS App Development
120+ native iOS apps shipped across consumer, enterprise, healthtech, fintech, AR, and retail verticals - with Swift-first development, Apple HIG fluency, deep Apple platform API expertise, and performance profiling on real Apple devices before every release.
120+ Native iOS Apps Shipped
We have shipped 120+ native iOS apps to the App Store across consumer, enterprise, healthtech, fintech, AR, and retail verticals - from solo founder MVPs to apps with millions of downloads and enterprise deployments across thousands of managed Apple devices.
Swift-First, SwiftUI-First Since Swift 5
We adopted Swift early and have built production SwiftUI apps since SwiftUI 2.0. Our engineers understand SwiftUI view identity, state management, animations, and the SwiftUI-UIKit boundary at a depth that comes from shipping real apps, not watching WWDC sessions.
Apple HIG Fluency - Apps that Feel Right
We build iOS apps that feel genuinely native - correct use of NavigationStack, sheet presentation, SF Symbols, Dynamic Type, Dark Mode, haptic feedback, and system gestures. Apple reviewers notice the difference, and so do your users. Our App Store approval rate on first submission is over 95%.
Apple Platform API Specialists
Deep expertise in ARKit and RealityKit, Core ML and Vision, HealthKit, StoreKit 2, Apple Pay, MapKit and Core Location, AVFoundation, VisionKit, HomeKit, and Siri App Intents - the APIs that make iOS apps genuinely differentiated from web and Android experiences.
Performance Profiled on Real Devices
We profile every iOS app with Xcode Instruments before release - checking CPU traces, memory allocations, retain cycles, energy impact, and launch time on the oldest supported device target. We target under 400ms time-to-interactive and 60fps scroll performance on iPhone SE as a baseline.
End-to-End - App + Backend + DevOps
We build everything your iOS app needs - the Swift front-end, the backend API (Node.js, Python, Firebase/Supabase), Fastlane/Xcode Cloud CI/CD, TestFlight management, and App Store Connect maintenance. One partner, full accountability, no gaps between teams.
US / UK / AU Timezone Overlap
Our iOS engineers maintain scheduled daily standup windows overlapping US EST, UK GMT, and Australian AEST business hours. You get real-time communication with your Swift development team - not 24-hour email delays on critical architecture or design decisions.
Transparent Delivery. Full IP Ownership.
Biweekly TestFlight builds you can install on your own devices, a shared sprint board, direct access to your iOS lead engineer, and weekly progress reports. All source code, assets, and intellectual property are 100% yours from day one - no vendor lock-in.
Start Your iOS App Project
Tell us about your iOS app and we will schedule a free 60-minute discovery call with a senior Swift architect. We will review your requirements, recommend the right architecture, and give you a realistic scope, timeline, and cost estimate at no charge.
Free 60-minute iOS discovery and architecture review call
App scope, screen inventory, and Swift tech stack recommendation at no charge
Native iOS vs Flutter vs React Native analysis for your specific use case
NDA available on request - your app concept stays fully confidential
Response within 24 business hours from our iOS engineering lead
Tell Us About Your iOS App
iOS App Development - Frequently Asked Questions
Everything you need to know about building a native iOS application with 1Solutions - from Swift vs Objective-C to Apple platform APIs, enterprise MDM, and App Store submission.