Smerdoff
Smerdoff Technologies / Swift

Swift App Development Company for Native iOS Apps

Native iOS still wins when performance, polish, or deep platform integration matter — camera, HealthKit, background processing, or just an interface that feels right on an iPhone. We build in Swift and SwiftUI by default, fall back to UIKit where the platform still expects it, and ship apps ready for App Store review.

SwiftSwiftUIUIKitiOSApp Store
10–30%
of a full build is what a lean first version costs on a modern stack — validate before you scale
MVP cost research
~3×
higher conversion for a 1-second site vs a 5-second one — the stack you build on decides this
Web design research

Why teams choose a dedicated Swift team over a generalist agency

Native iOS rewards attention to platform detail — the difference between an app that feels native and one that feels like a wrapper shows up fast.

SwiftUI first, UIKit when it's the right call

New builds default to SwiftUI for speed and maintainability. We drop into UIKit for complex custom interactions or when extending an existing UIKit codebase.

Performance and battery discipline

Profiling with Instruments, careful memory management, and background task handling so the app doesn't earn a bad review for draining battery.

Deep platform integration

Push notifications, HealthKit, camera and ARKit, widgets, and background processing implemented against Apple's current APIs, not deprecated patterns.

Legacy Swift and Objective-C rescue

We take over existing codebases — old UIKit view controllers, mixed Objective-C/Swift, outdated dependency managers — without forcing a rewrite unless it's genuinely cheaper.

Senior engineers, not a junior bench

The people writing your app are the people who scoped the architecture — no handoff gap between sales and delivery.

App Store submission handled

Provisioning profiles, review guideline compliance, and submission logistics handled so a rejection doesn't stall your launch date.

What a Swift engagement typically includes

Scoped to what your app needs — not a fixed package of features you'll pay for and never use.

SwiftUI app builds

New iOS apps built in SwiftUI with a component structure your team can extend after launch.

UIKit maintenance & extension

Working inside existing UIKit codebases — new features, bug fixes, and incremental SwiftUI adoption where it makes sense.

Native platform integrations

HealthKit, camera, push notifications, in-app purchases, widgets, and other iOS-specific capabilities.

Performance audits

Instruments-driven profiling for launch time, memory leaks, and battery drain on apps that have slowed down over time.

Backend & API integration

Connecting iOS apps to REST, GraphQL, or your existing backend without leaking business logic into views.

App Store submission support

Preparing builds, metadata, and provisioning for review, and handling rejections without blowing your launch date.

FAQ

SwiftUI is our default for new apps — it's faster to build and easier to maintain. We use UIKit when a project needs fine-grained control SwiftUI doesn't yet offer, or when we're extending an existing UIKit codebase rather than rewriting it.

It depends on scope — a focused MVP with a handful of screens costs less than a product with complex state, offline support, or deep platform integrations. We give a fixed estimate after a short scoping call rather than a generic range.

Yes. We regularly take over codebases we didn't write — including mixed Swift/Objective-C projects — for ongoing feature work, bug fixes, and gradual modernization without a risky full rewrite.

Yes. We prepare the build, metadata, and provisioning, submit for review, and handle any rejections directly so a guideline issue doesn't sit on your desk waiting for a fix.

Related

Get a free estimate for your Swift app

Tell us what you're building or what's slowing down your current iOS app — we'll scope an approach and a fixed estimate.