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iOS App Development

Native apps that
users love.

We design and build native iOS apps in Swift for iPhone and iPad: from idea to App Store launch, with premium UX, flawless performance, and scalable architecture.

Swift & SwiftUI iPhone & iPad App Store API Integration Push & Analytics
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9:41 Your App DAU 6.2k App Store 4.8 ★ Downloads 2.1M
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85+
Apps published
4.8/5
Average App Store rating
2.1M
Total downloads
99.7%
Crash-free sessions
Our stack

Technologies, frameworks,
and iOS expertise.

100% native development and complete mastery of the Apple ecosystem: from UI to system APIs, all the way to publishing.

Swift & SwiftUI

100% native development with SwiftUI, MVVM architecture, Combine, and Swift Concurrency for modern, reactive, and maintainable interfaces over time.

struct AppView: View {
  @State var user: User
  var body: some View {
    NavigationStack { // Native UI }
  }
}

Core Apple Features

We leverage the full ecosystem for native features that are impossible on the web.

Push APNsIn-App PurchaseHealthKitARKitCoreMLMapKitCloudKit

Backend & API

REST and GraphQL, OAuth 2.0, Sign in with Apple, and real-time sync.

iOS UI/UX Design

Human Interface Guidelines, 60fps, Dynamic Type, and Dark Mode.

Testing & QA

Unit, UI, and performance testing with XCTest, TestFlight betas, and crash reporting with Instruments for flawless stability.

App Store & ASO

Listing optimization, professional screenshots, App Preview videos, and a launch strategy to maximize downloads.

App architecture

Architecture designed
to scale.

Every app starts with a solid architecture: modular codebase, dependency injection, a separate networking layer, and the MVVM pattern for long-term testability and maintainability.

The result: apps that update easily, integrate with new APIs without a full rewrite, and maintain excellent performance even with millions of users.

Discover our approach
Continue PRESENTATION SwiftUI Views ViewModels DOMAIN Business Logic Use Cases Entities DATA Networking API Core Data 92%Code Coverage0.8sCold Start45MBApp Size
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Ready to launch your
app on the App Store?

Request a free consultation and discover how to turn your idea into a native iOS app that users will love using every day.

Build your app Free consultation

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How we work

Our iOS app development
process at Ottobix.

Four phases, one proven method. Select each stage to see what happens.

Phase 01

Discovery & Design

Requirements analysis, user research, wireframes, and an interactive Figma prototype. We validate the concept with real users before writing a single line of code.

  • User research and persona definition
  • Complete wireframes and user flows
  • Validated, interactive Figma prototype
Phase 02

Development Sprint

Agile development in 2-week sprints with incremental TestFlight builds. MVVM architecture, unit tests, and code review on every pull request for consistent quality.

  • 2-week sprints with continuous demos
  • Incremental TestFlight builds
  • Code review and unit tests on every PR
Phase 03

Testing & Launch

Rigorous QA across all target devices, TestFlight beta testing, performance optimization, and App Store submission with an ASO and launch strategy.

  • QA on target iPhone and iPad models
  • Public beta with TestFlight
  • Submission with optimized ASO
Phase 04

Grow & Iterate

Analytics monitoring, review management, A/B testing, push notification strategy, and an evolution roadmap based on real user data.

  • Analytics, retention, and crash rate
  • A/B testing of screenshots and onboarding
  • Data-driven evolution roadmap
Frequently asked questions

Have questions about
iOS app development?

Why develop native instead of cross-platform?
Native development in Swift guarantees superior performance, full access to every Apple API (HealthKit, ARKit, CoreML, Widgets), UX perfectly aligned with iOS user expectations, and immediate updates for new OS versions. Hybrid apps sacrifice performance and UX to save on upfront costs, but often end up costing more in the long run through maintenance.
How much does it cost to develop an iOS app?
An MVP with 3-5 core screens, authentication, and a backend API starts at €15,000-25,000. More complex apps with advanced features (payments, real-time sync, AR, third-party integrations) range from €30,000 to €80,000+. The cost depends on feature complexity, design, and backend integrations.
How long does it take to develop?
An MVP takes 8-12 weeks (2-3 for design, 6-8 for development, 1-2 for testing). Complex apps take 4-6 months. We work in agile sprints with incremental TestFlight builds, so you can test and give feedback throughout development.
Do you also handle App Store publishing?
Yes, completely. We handle developer account setup, preparing materials (screenshots, App Preview, ASO description), submission, and the Apple review process. We have a 94% first-attempt approval rate thanks to our experience with the App Review Guidelines.
What happens after launch?
We offer maintenance and growth plans: crash and performance monitoring, updates for new iOS versions and devices, ongoing ASO, review management, and incremental feature development based on analytics. Launch is the beginning, not the end, of the project.
Can I also get an Android version?
Yes. We can separately develop a native Android app in Kotlin, or explore a Flutter/React Native approach together if budget is limited and native performance isn't critical. We recommend launching on one platform first, validating product-market fit, and then expanding.
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