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iOS · SwiftUI · App Store

iOS app development in Istanbul

The path from idea to App Store is more than writing code. SwiftUI interface, data model, Firebase, subscriptions, onboarding, haptics and App Store launch are planned as one product system.

Quote
Written scope → fixed price
Stack
Swift · SwiftUI
Delivery
Prototype + App Store
Short answer

Building an iOS app is more than writing code: screen design, data flow, local storage, notifications, any subscription infrastructure and the App Store release process are all parts of one plan. SwiftUI is the right choice for most apps today. On the release side, what costs the most time is not code but App Store review requirements: privacy policy, data-collection declaration, account deletion and subscription rules.

Who It Is For

Who is this service for?

Founders with a mobile app idea, teams building an MVP, brands moving a web product to iOS or startups preparing an App Store launch.

Scope

What the work includes

  • Native SwiftUI interface and component system
  • Firebase, local storage or API-based data flows
  • Onboarding, paywall, subscription and notification logic
  • TestFlight, App Store Connect and release preparation
  • Launch package with App Store screenshots and ASO copy

Native or cross-platform

The decision follows what the product does, not the budget.

  • Native (SwiftUI): when the app is intertwined with the device — haptics, widgets, background work, camera, health data, Apple's payment and subscription infrastructure. Fluidity and platform feel make a visible difference here.
  • Cross-platform: when the app is essentially a content or form interface and shipping to both platforms quickly matters.

A common misconception is that cross-platform is always cheaper. In an app that leans heavily on device capabilities, bridge layers and platform-specific fixes can end up costing more than native development.

Working with SwiftUI

SwiftUI derives the interface from state: the screen is a view of the data as it currently is. That structurally prevents the interface drifting out of sync with the data.

  • State management is defined up front. Leave it vague about where data lives and it becomes the app's main source of bugs as it grows.
  • Local storage is chosen deliberately. Lightweight storage for simple preferences, a database layer for structured data. This is one of the most expensive decisions to change later.
  • Offline behaviour is designed. If what happens without a connection is not designed, the user meets a blank screen.
  • Accessibility and Dynamic Type are considered from the start; the layout must not break when the user increases text size.

Release: where the time actually goes

  • A privacy policy must be live at a reachable address — from inside the app and from the store listing.
  • The App Privacy declaration must match actual behaviour exactly; an incomplete or wrong declaration is grounds for rejection.
  • If accounts are created, account deletion must be possible from inside the app — this is now mandatory.
  • If there is a subscription, price, duration, renewal terms and a link to the terms must be clearly visible on the purchase screen.
  • A test account must be provided to review for apps requiring login; forget it and the process restarts.

Planned from the start these take days; left to the end they stretch into weeks.

Store screenshots drive installs

For most users the App Store page is the app's first demo. People look at the images and decide without reading the description. So screenshots are prepared not as raw screen captures but as designed frames, each making a single promise. Details on the App Store and ASO page.

My work in this area

To be straightforward: my iOS work so far has been through my own products — a SwiftUI coffee brewing timer, a narrative game experiment and an AI-assisted recipe assistant. These can be seen on the projects page. My production experience with clients is on the web, e-commerce, payments and POS side, documented in the case studies.

iOS project scope
Technology
Swift + SwiftUI; state management and local storage defined up front
Decision
Native or cross-platform — driven by device capability use, not budget
Offline
Behaviour without a connection is designed
Accessibility
Dynamic Type and contrast considered from the start
Release prerequisite
Privacy policy + App Privacy declaration + account deletion
Subscriptions
Price, duration, renewal and terms visible on the purchase screen
Review
A test account is provided for apps requiring login
Store listing
Screenshots are designed — not raw captures
Frequently Asked Questions

Questions before the inquiry.

Can you build only a prototype?

Yes. The project can start with a clickable Figma prototype or a SwiftUI MVP, then grow in scope.

Do you support App Store publishing?

Yes. App Store Connect setup, screenshots, descriptions, keywords and a launch checklist can be supported.

Can subscriptions or in-app purchases be added?

StoreKit, paywall and subscription flows can be planned depending on the product model.

How long does building an iOS app take?

It depends on scope. A single-purpose app with no server can take a few weeks; one with user accounts, a backend and subscriptions runs to a few months. What stretches the timeline is usually not development but App Store review requirements and any payment/subscription setup — which is why they should be planned from the start.

SwiftUI or UIKit?

For new projects SwiftUI is the right choice in most cases: less code, an interface derived from data and easier maintenance. UIKit is still needed for very custom drawing or older iOS version support, and the two can be used together in one project.

What if my app gets rejected from the App Store?

Rejections are usually about requirements rather than code: a missing privacy policy, a data-collection declaration that does not match actual behaviour, no account deletion option, or subscription details not clear enough on the purchase screen. Planned from the start, this risk largely disappears.

I want both iOS and Android — what should I do?

If the app is essentially a content or form interface, a cross-platform approach can make sense. But if it leans heavily on device capabilities (haptics, widgets, background work, health data), bridge layers can end up costing more than native. The decision should follow what the product does, not the budget.

Do you have client references on the iOS side?

To be straightforward, my iOS work so far has been through my own products, which can be seen on the projects page. My production experience with clients is concentrated on web, e-commerce, payment integrations and POS systems, and is documented in detail in the case studies.

Proposal and Availability

Have an idea?
Half a sentence is enough.