iOS scope and architecture
Core flows, navigation, data and integrations defined for iPhone (and iPad where it matters), with a Swift architecture that stays maintainable.
Service · iOS App Development
Native iOS app development in Swift, built to ship to the App Store.
99 Francs builds focused native iOS apps in Swift for iPhone and iPad — clean architecture, the flows that matter, and App Store submission support, not an endless platform.
150+
shipped projects
$32M+
raised by clients
9,000+
tasks delivered
Direct answer
iOS app development is building a native app for iPhone and iPad in Swift — designed for Apple's platform, its guidelines and the App Store.
We build when the product benefits from native iOS: smooth performance, platform conventions, device features and a polished App Store presence. We scope the first useful release, build the core flows in Swift, and take the app through testing and App Store submission.
What we build
A native iOS app scoped to ship, not to sprawl.
The strongest first iOS release is focused: the flows users need, built natively, ready to pass App Store review.
Native Swift build
Screens, navigation, state, forms and platform features implemented in Swift following Apple's Human Interface Guidelines.
Device states and QA
Responsive layouts, device and orientation states, permissions, edge cases and testing across the iPhone and iPad sizes that matter.
App Store submission
Build configuration, store listing assets, screenshots, review preparation and support getting the app live on the App Store.
Best fit
Use native iOS development when the product should feel like a real Apple app.
iOS is your primary platform
If your users are on iPhone first, a native Swift app gives the best performance, feel and access to platform features.
You need native device features
Camera, sensors, notifications, background tasks, secure storage and other platform capabilities are cleaner native than cross-platform.
The design already exists
If you have Figma screens or a product design system, we turn that into a working native iOS surface.
You want App Store help, not just code
We prepare the build, store assets and submission so the app actually reaches users, not just a TestFlight link.
Process
From iOS scope to an App Store-ready build.
We keep the build tied to product behavior and Apple's guidelines, then take it through review.
Scope the iOS release
Goal, design maturity, APIs, device features, platform constraints and the smallest useful first version.
Plan the Swift architecture
Navigation, state, data flow and the native components and frameworks the app needs.
Build the core flows
Implement the screens, navigation, states, integrations and platform features in Swift.
Test and submit to the App Store
Device QA, store assets, review preparation and submission support to get the app live.
iOS app build
Ship a native iPhone app that feels like it belongs on iOS.
Tell us about the app and where the design stands. We will scope the iOS build and the path to the App Store.
Discuss an iOS app→Yes. 99 Francs builds native iOS apps in Swift (with SwiftUI or UIKit as the project needs) for iPhone and iPad, following Apple's Human Interface Guidelines. We focus on lean, product-led first releases rather than large enterprise platforms.
Yes. We prepare the build configuration, store listing assets and screenshots, help with review preparation and support the submission so the app reaches the App Store, not just an internal TestFlight build.
Choose native iOS when iPhone is primary and platform depth matters. Choose Flutter or React Native when one codebase for iOS and Android and faster time-to-market matter more.
Yes. If the UX or UI is not ready, the project should start with mobile app design before development. We can run design and build as one engagement.