We Build iOS Apps That iPhone Users Actually Love.

From your first iPhone MVP to a full enterprise platform across iPhone, iPad, and Apple Watch. 50 apps shipped. HIPAA compliant. 100% IP ownership. TestFlight builds every 2 weeks, no exceptions.

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What Is iOS App Development?

iOS app development is the process of creating mobile software for Apple’s iPhone, iPad, Apple Watch, and Apple TV. iOS runs on over 1.2 billion active Apple devices globally, with the United States consistently showing iPhone market share above 55 percent. iOS apps are built in Swift, Apple’s modern type-safe language, and use SwiftUI for declarative UI design. The distribution platform is the Apple App Store, which hosts over 1.8 million apps reviewed against Apple’s strict Human Interface Guidelines (HIG). Native iOS apps can access powerful hardware and platform features unavailable to web or cross-platform apps, including Face ID biometrics, HealthKit health data, ARKit augmented reality, Core ML on-device machine learning, Apple Pay payments, WidgetKit home screen widgets, and Live Activities on the Dynamic Island.

At Maze Digital, our iOS development service is end-to-end: product strategy, UX wireframes following Apple HIG, Figma UI design with SF Symbols and Dark Mode, Swift and SwiftUI engineering in Agile sprints, QA on real iPhones and iPads, and full App Store submission with ASO optimization.

Our iOS Services

Every iOS Development Service You Need, In One Team

We cover the complete iOS development spectrum. One team handles strategy, design, engineering, and launch.

Core Service

Native iPhone App Development

We build high-performance native iPhone apps using Swift and SwiftUI. Every app follows Apple's Human Interface Guidelines precisely, uses the latest iOS APIs, and delivers the fluid, premium experience that iPhone users expect. We ship clean, well-documented Swift code that any iOS developer can read, maintain, and build on for years.

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Multi-Device

Universal iPhone and iPad Apps

We build universal iOS apps that scale beautifully from iPhone SE to iPad Pro 13-inch. Using SwiftUI's adaptive layouts, split-view containers, sidebar navigation, and Apple Pencil support, your app becomes a genuinely powerful productivity tool on iPad without feeling like a stretched phone app.

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Apple Ecosystem

Apple Watch Apps

We extend iOS apps to Apple Watch with WatchKit and SwiftUI for watchOS. Complications, health metric tracking, workout sessions, and quick-glance notifications designed for the wrist.

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Enterprise

Enterprise iOS Apps

Secure field service tools, mobile CRMs, inspection apps, and B2B platforms. MDM compatible, SSO integration, enterprise-grade security built from the first sprint.

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Healthcare

HIPAA iOS Apps

HIPAA-compliant iPhone apps for clinics, hospitals, and health startups. AES-256 encryption, Face ID, HealthKit, and BAA included.

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Migration

iOS App Redesign and Migration

Your iOS app deserves to look and perform like it was built this year. We migrate legacy iOS apps from Objective-C to Swift, UIKit to SwiftUI, and outdated UI patterns to modern equivalents for iOS. We fix App Store Review rejections, improve performance using Instruments, and add new Apple platform features without breaking existing functionality.

✓ UIKit to SwiftUI Migration✓ Objective-C to Swift✓ App Store Rejection Fixes✓ iOS 17 and 18 API Updates✓ WidgetKit and Live Activities✓ Performance Profiling with Instruments

8+

Years Building for iOS

50+

Apps in App Store

0

Critical Rejections

4.9

Clutch Rating

8+

Years Building for iOS

50+

Apps in App Store

0

Critical Rejections

4.9

Clutch Rating

APPLE ECOSYSTEM

Built for the Full Apple Ecosystem

We design and engineer iOS products that feel native on every Apple device your users touch, from iPhone and iPad to Apple Watch.

Native iPhone App Development

SwiftSwiftUIHIG

Platform Integrations

Apple Framework Integrations That Set Your App Apart

Native iOS apps can do things no cross-platform app can match. These Apple framework integrations give your product a genuine competitive advantage over apps built with React Native or Flutter.

Product Strategy & Discovery

We run a structured discovery sprint to define your target users, core features, your industry competition, and tech stack. You receive a detailed PRD and project roadmap before a single wireframe is drawn.

2-3 Days

UI/UX Design for Mobile

Our design team creates user flows, wireframes, and full Figma UI designs with interactive prototypes. We design specifically for mobile, thumb zones, gestures, platform conventions, and accessibility.

3-5 Days

Backend Development & APIs

We craft pixel-perfect UI designs in Figma across all breakpoints. Interactive prototypes let you review and approve the experience before a single line of code is written.

7-14 Days

Third-Party Integrations

Stripe payments, Twilio SMS/voice, push notifications (Firebase FCM / APNs), Google Maps, social logins, analytics SDKs, wearables, and any other API your app needs, fully integrated and tested.

4-12 Weeks

QA Testing & Crash Analytics

We test on real iOS and Android devices across OS versions, screen sizes, and network conditions. We integrate Firebase Crashlytics, Sentry, and automated test suites before every release.

5-7 Days

App Store & Google Play Launch

We handle the full submission process metadata, screenshots, compliance review, category optimization, and App Store Optimization (ASO) basics, so your app gets approved and discovered.

2-3 Days + Ongoing

Why Maze Digital

Why the Best iOS Founders Choose Maze Digital

We have shipped over 50 iOS apps to the App Store. Here is what separates our work from the agencies that will give you a cheaper quote.

50+

iOS Apps in the App Store

100+

Swift on Every New Project

494.9

Average App Store Rating

98%

Client Retention Rate

50+

iOS Apps in the App Store

100+

Swift on Every New Project

494.9

Average App Store Rating

98%

Client Retention Rate

Pure Swift, No Shortcuts

We write 100 percent Swift on every new iOS project. No Objective-C, no RxSwift legacy patterns, no workarounds. Clean MVVM architecture, async/await concurrency, and Combine reactive bindings that your next iOS developer will be able to read and extend without a rewrite in 2 years.

Design That Feels Native to Apple

We design iOS apps that feel like they were made by Apple’s own design team. SF Symbols, Dynamic Type at all sizes, proper Dark Mode support using semantic colors, haptic feedback at the right moments, and spring animations that match the iOS physics engine exactly. Not a web app in a shell.

TestFlight Builds on Your iPhone Every Sprint

After every 2-week sprint, a new TestFlight build lands on your actual iPhone for testing. You tap through real features, spot real bugs, and give feedback on real UX. You will never experience the gap between what was approved in Figma and what shipped on launch day, because you have been testing real builds throughout.

App Store Review Experts

We have submitted over 50 apps to Apple App Store Review with zero critical rejections. We know App Review Guidelines in depth: data collection privacy disclosures, in-app purchase rules, minimum functionality requirements, content policies, and the nuanced edge cases that cause most developers to receive rejection notices.

HIPAA Compliant by Default

We treat security as a first-class engineering requirement, not an afterthought. AES-256 encryption for all data at rest, TLS with certificate pinning for all network calls, Face ID and Touch ID via LocalAuthentication, Keychain for all credentials, audit logging, and Business Associate Agreements for every healthcare client.

Your Code, Your App Store Account

Everything transfers on final payment. Swift source code, Xcode project files, Figma assets, signing certificates, App Store Connect credentials, and a clean GitHub repository with proper commit history. You get a documented handover package so any iOS developer can immediately pick up where we left off.

How We Work

From Your Idea to the App Store

A structured 6-step process with full transparency at every stage. You always know what is being built, what is next, and when you will see it on your iPhone.

2-3 Days

iOS Product Discovery and Architecture Planning

We open every engagement with a structured discovery sprint. We define your target iPhone users, the minimum iOS version to support, which device classes to cover (iPhone only, iPad universal, Apple Watch), the core feature set, and the right backend architecture. The output is a full Product Requirements Document with a clear tech stack recommendation including Swift version, Jetpack equivalents, architecture pattern (MVVM or TCA), API contract design, and a timeline with milestones. Both teams are fully aligned before a single wireframe is drawn.

PRDMVVM vs TCATech StackAPI ContractProject Milestones

3 to 5 Days

UX Architecture and iOS Wireframes

Our UX team maps every user journey and produces low-fidelity wireframes following Apple's Human Interface Guidelines. We design for iOS-specific patterns: tab bar navigation, navigation stacks, sheets and modals, gesture navigation for iOS 16 and later, pull-to-refresh, swipe actions, and contextual menus. We wireframe for iPhone and iPad from the start rather than retrofitting adaptive layouts afterward. Every wireframe screen is reviewed and signed off by you before visual design begins.

User FlowsHIG Navigation PatternsGesture NavigationAdaptive Layouts

7 to 14 Days

iOS UI Design with SF Symbols and Dark Mode

We design your complete iOS app UI in Figma. Every screen, every state (empty, loading, error, success, and partial data), every transition, and every platform-specific detail. We use SF Symbols for all iconography, Dynamic Type across all text sizes from Extra Small to Accessibility Extra Extra Extra Large, semantic system colors so Dark Mode works automatically, and the iOS 8-point spatial grid for precise spacing. We build an interactive Figma prototype with real iOS transitions for your approval before Swift development begins.

SF SymbolsDynamic TypeDark ModeFigma PrototypeiOS 8pt Grid

4 to 16 Weeks

Swift and SwiftUI Engineering in Agile Sprints

Engineers build your iOS app in 2-week Agile sprints. The stack is Swift with SwiftUI, MVVM architecture with Combine for reactive state, URLSession and Codable for networking, SwiftData or Core Data for local persistence, Keychain for secure credential storage, and the specific Apple frameworks your features require. After every sprint, a new TestFlight build is deployed to your iPhone. You test real functionality on your actual device, report feedback, and we adjust the next sprint backlog based on what you find. No surprises at launch because you have been testing the app for weeks already.

Swift 5.9SwiftUICombineSwiftDataKeychainTestFlight2-Week Sprints

5 to 7 Days

QA on Real iPhones, iPads, and iOS Versions

We test on real Apple hardware across the current device lineup: iPhone SE 3rd gen, iPhone 15 standard, iPhone 15 Pro, iPhone 15 Pro Max, iPad Air, and iPad Pro. We cover iOS 16, 17, and 18. We run unit tests with XCTest, UI automation with XCUITest, memory leak detection with Instruments, and performance profiling. We verify Dynamic Type at all accessibility sizes, VoiceOver screen reader compatibility, Dark Mode rendering, and every App Store Review Guideline checklist item before submission. We also test App Tracking Transparency flows, App Privacy nutrition labels accuracy, and data safety section declarations.

XCTestXCUITestInstrumentsVoiceOveriOS 16 to 18App Store Checklist

2 to 3 Days, Then Ongoing

App Store Launch, ASO, and Post-Launch Monitoring

We handle the complete App Store submission. App signing with a distribution certificate, optimized App Store Connect listing with keyword research for ASO, screenshots and App Preview videos for all required device sizes, App Privacy labels, Data Safety disclosure, Content Rating questionnaire, and an initial phased release starting at 10 percent of users to catch any issues before full rollout. Firebase Crashlytics is live before launch day. We review the first 48 hours of crash reports personally. Every project includes a 30-day post-launch warranty covering critical bug fixes at no additional charge.

App Store ASODistribution CertificatePrivacy LabelsPhased ReleaseCrashlytics30-Day Warranty

Technologies

Our iOS Technology Stack Explained

Every tool in our iOS stack is chosen deliberately. Here is exactly what we use at each layer and the reasoning behind each choice.

Flutter

Dart

React Native

Kotlin

Our Mobile App Solutions for Client

Maze Digital is your Dedicated Design and Frontend Engineering partner for Complex Software.

Construction • GIS Web App

Peptide MD

A full-scale hazard management and asset tracking web platform for industrial power generation, petroleum, and construction environments. Real-time GIS mapping, work order management, and multi-site dashboards.

40%

Faster Incident Reporting

3x

User Adoption Rate

Ecommerce Restaurant web

Vybe

A modern social media app designed to bring real-time connection, creativity, and community into a single platformA brand-forward restaurant website with online ordering, table reservation system, menu management CMS, and events booking designed to maximize in-person and online conversions for a premium dining brand.

65%

Increase in Online Orders

2.1s

Page Load Speed

Native vs Cross-Platform

Native iOS vs Cross-Platform An Honest Comparison

We build both native and cross-platform apps. Here is an unbiased breakdown so you can choose what is right for your product.

Factor	iOS Native (Swift)	React Native	Flutter
Raw Performance	BestDirect Metal GPU access	Near-NativeJS bridge overhead	Near-BestDart compiled to ARM
Covers Android Too	iOS only	Yes, iOS and Android	Yes, plus Web and Desktop
Apple Platform Access	100% same-day new APIs	Most via community modules, delayed	Most via plugins, delayed
SwiftUI and HIG	Native exact Apple behavior	Approximated via libraries	Custom rendering, not native
Face ID, HealthKit, ARKit	Full, first-class support	Via community modules	Via community plugins
Development Cost	Higher for iOS only	30–40% less for both	30–40% less for both
Time to Market	One platform, focused delivery	Faster with shared codebase	Fastest with hot reload
Best When	iOS-first, Apple ecosystem deep, maximum performance needed	JS team available, both platforms needed quickly	Fresh project, design-heavy, all platforms at once

Not sure which is right? Book a free consultation and we will give you an honest recommendation with no preference for any framework.

Client Reviews

What Our iOS App Clients Say

Verified reviews from founders and CTOs who shipped iPhone apps with our team.

Maze Digital completely transformed our product experience. The new UX is not only visually polished but significantly improved our user engagement and conversions.

Priya Sharma

Product Manager

Working with Maze Digital felt like having a strategic partner, not just a design team. They understood our business goals and translated them into a seamless user journey.

Jason

Marketing Manager

The level of detail in their UI/UX work is exceptional. From research to final design, everything was structured, thoughtful, and user-focused.

Omer

Founder & CEO

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iOS App Development Frequently Asked Questions

Every question founders ask before starting an iOS project. Answered directly and completely.

iOS app development costs range from $15,000 for a focused iPhone MVP to $150,000 or more for a complex enterprise platform with Apple Watch, HealthKit, and advanced integrations. At Maze Digital, most startup iOS projects cost between $20,000 and $70,000, depending on screens, backend complexity, and the Apple framework integrations required. We provide a detailed line-item estimate after a free discovery call, not vague ranges or hidden setup fees.

A basic iPhone MVP takes 6 to 10 weeks from discovery to App Store submission. A standard iOS app with a custom backend, Apple Pay, and real-time features takes 10 to 18 weeks. Complex enterprise iOS applications with Apple Watch, HealthKit, ARKit, or HIPAA compliance take 18 or more weeks. We deliver a TestFlight build to your iPhone after every 2-week sprint so you always see real progress and never receive a surprise at the final delivery.

We use Swift exclusively for all new iOS projects, Apple’s modern type-safe language, and the only language Apple recommends for new development in 2026. For UI, we use SwiftUI for all new projects, with UIKit where legacy compatibility or complex custom components require it. We never use Objective-C on new projects. If your existing app is in Objective-C, we can migrate it to Swift as part of the engagement.

Build native iOS if your users are primarily on iPhone, you need deep Apple ecosystem integration, including HealthKit, ARKit, Core ML, Face ID, Apple Watch, or Live Activities. You need the absolute best performance, or App Store Review compliance with the latest Apple guidelines is critical. Choose React Native or Flutter if you need to launch on iOS and Android simultaneously with a shared codebase, which costs 30 to 40 percent less than building two separate native apps. We will give you an honest recommendation for your specific project during the free consultation with no bias toward any framework.

Yes. We build HIPAA-compliant iOS applications using AES-256 encryption for all data at rest via encrypted Core Data and Keychain Services, TLS 1.3 with certificate pinning for all network communication, Face ID and Touch ID biometric authentication via the LocalAuthentication framework, automatic session timeout, audit logging, role-based access control, and Business Associate Agreements for all healthcare clients. Our healthcare iOS portfolio includes Peptide MD, an AI-powered wellness app with full HIPAA compliance that passed App Store Review on first submission.

Yes. Our launch service covers the complete Apple App Store submission: app signing with a distribution certificate, App Store Connect listing setup, keyword-optimized title and subtitle for ASO, screenshots and App Preview videos for all required device sizes, App Privacy nutrition labels, Data Safety disclosure, Content Rating questionnaire, and a phased release rollout starting at 10 percent of users to catch any issues before full release. We have submitted over 50 apps to App Store Review with zero critical rejections on initial submission.

You do. All Swift source code, Xcode project files, Figma design assets, App Store Connect credentials, signing certificates, and every deliverable will be transferred to you on final payment. Maze Digital retains zero rights to your application or intellectual property. We sign NDAs before project start, work on a shared GitHub repository you have full access to throughout, and deliver a clean, documented handover package on completion so any iOS developer can immediately continue building.

Yes. We handle iOS app redesigns, including UIKit to SwiftUI migration, Objective-C to Swift migration, performance improvements using Instruments, upgrading deprecated iOS APIs for compatibility with iOS 17 and 18, adding new platform features, including Apple Watch, WidgetKit, and Live Activities, fixing App Store Review rejections, and architecture refactoring from MVC to clean MVVM. Share your current App Store link, and we will provide a free technical audit within 24 hours.