What does a Swift development company build?
Swift is Apple's language for every Apple platform, so a Swift team's scope is wider than an iPhone app. One Xcode project can hold an iPhone and iPad app, an Apple Watch app, a Mac target, home-screen widgets, an App Clip and Siri or Shortcuts actions through App Intents, all sharing the same Swift models and networking code.
At Miracuves a Swift engagement covers the SwiftUI interface (UIKit where a screen or SDK needs it), the Apple framework integrations, a Node.js API and admin panel when the product needs a backend, TestFlight builds and App Store Connect submission. You receive the full Xcode project and repository.
When is native Swift the right choice over Flutter or React Native?
Choose Swift when the product depends on something Apple ships first, or only for native code: HealthKit data, a watchOS app, ARKit, widgets and Live Activities, App Clips, CarPlay, or background audio that must behave exactly like Apple's own apps. New Apple APIs are usable in Swift as soon as Xcode supports them; cross-platform frameworks wait for a plugin.
- Swift fits: Apple-first launches, health and fitness, premium retail where HIG polish is part of the brand.
- Swift fits: apps that need an Apple Watch or Mac version sharing the same Swift code.
- Skip it: you need iOS and Android at launch on one budget - a Flutter build gets both stores faster.
- Skip it: the app is mostly forms and lists over an API, with no Apple-only features.
How much does a custom Swift app cost, and what does it cost to run?
Custom native Swift builds at Miracuves typically run $12,000-$35,000 over 2-8 weeks. The figure moves with HealthKit, ARKit and watchOS scope, App Clips and extensions, HIPAA or PCI requirements, the number of user roles, offline sync and each third-party SDK. Larger scopes are quoted in writing before work starts.
Running costs are mostly Apple's: the Apple Developer Program fee of $99 a year, Apple's commission on digital goods and subscriptions sold through in-app purchase (15% for developers in its Small Business Program), and your backend hosting. A Swift-only app has no Android build to maintain; if Android follows, it is a second codebase. Continuing work runs from $2,299/month.
Can you move an Objective-C, UIKit or Flutter app to Swift?
Yes, and the method depends on the source. Objective-C and Swift compile into the same app, so an Objective-C codebase can move a module at a time: new features are written in Swift, and older classes are converted when they are next touched. UIKit screens move to SwiftUI the same way, hosted side by side through UIHostingController, so there is no big-bang rewrite.
A Flutter or React Native app is different. Dart and JavaScript cannot be converted into Swift, so the interface is rebuilt natively while the backend, API and data model stay. Any native Swift build or port is custom work, priced from the same $12,000-$35,000 range over 2-8 weeks and scoped in writing first.
What does Swift 6 strict concurrency mean for my app?
Swift 6 language mode turns data-race checking from warnings into compile errors. The compiler tracks which code runs on the main actor and which values may cross between threads, so a class of crashes that used to appear only under load - two threads writing the same state - is caught at build time instead.
For a new app, Miracuves starts in Swift 6 language mode with async/await and actors from the first commit. For an older codebase we migrate module by module, fix what the compiler flags, and keep third-party SDKs that are not yet concurrency-safe behind a narrow wrapper. The result is fewer intermittent crashes after launch, and code the next engineer can change without guessing which thread it runs on.
Should you hire Swift developers or a Swift development company?
Hiring a Swift developer directly works when you already have an iOS lead who reviews every pull request, owns signing and provisioning, and knows App Store review. Without that person, a single freelancer carries the architecture, the QA, the certificates and the release process alone, and the app depends on them.
At Miracuves you contract with the company: a Swift engineer, a backend engineer, QA and a project manager work to a written scope with weekly demos, and the IP assignment is signed at project start. The team is based in Mumbai and works remotely with clients worldwide; first response is under 2 hours, Mon-Sat 10:00-19:00 IST. Miracuves does not rent developers by the hour.
How is a Swift app maintained after launch?
Apple ships a major iOS release every year, usually in September, and periodically raises the minimum Xcode and SDK version it accepts for App Store uploads. A Swift app nobody touches keeps running, but it cannot ship an update until it is rebuilt with a current Xcode and any deprecated APIs are replaced.
Every Miracuves delivery includes 60 days of post-launch support. After that, the Ongoing Swift Development retainer from $2,299/month covers testing against each iOS beta, layouts for new devices, SDK updates and feature work, with weekly sprint demos. Because you own the full source, your own team can take it over at any point instead.
