iOS App Development CompanySWIFT & SWIFTUI
Native iPhone Apps
engineered to survive
App Review
Swift and SwiftUI, written against the deployment target your users are actually on. Privacy manifests, entitlements and background modes settled before the first submission, not after the first rejection.
- Swift, SwiftUI & UIKit
- App Review & privacy manifests
- Watch, widgets & App Intents
- Swift
- SwiftUI
- Xcode
Action Drama
Ep 12
Thriller
Ep 8
Romance
NEW
Comedy
NEW
- In-app purchaseStoreKit 2Subscriptions & receipts
- LanguageSwift 6Strict concurrency ready
- App privacyManifestRequired-reason APIs declared
What building for iOS actually involves
SwiftUI is the default for new screens, but UIKit has not gone anywhere. Dense collection views, custom transitions and anything that needs real control over the responder chain still land there. Most shipping apps are a mix, and the decisions that matter are where the boundary sits and how state crosses it — observation and a single source of truth on one side, delegates and view controllers on the other.
The deployment target is a product decision before it is a technical one. Dropping a version buys you APIs and deletes a pile of conditional code; it also drops the users still on it. We set it against your own install data, not the newest thing shown at WWDC, then revisit it each autumn when the next iOS lands and Xcode's minimum macOS moves with it.
Then there is everything Apple wants before a build goes live: a privacy manifest declaring required-reason API use, the App Tracking Transparency prompt if you touch the advertising identifier, in-app account deletion if you offer sign-up, and a justification for every entitlement you request. Background execution is budgeted by the system rather than by you — background tasks get finite windows, silent pushes are throttled, and background location needs a reason a reviewer will accept. We design against those limits instead of meeting them in a rejection notice.
- SwiftUI and UIKit in one codebase
- Swift concurrency, actors, async/await
- Widgets, App Intents, Live Activities
- Apple Watch and iPad targets
- Keychain, Secure Enclave, biometrics
- TestFlight and phased release
The trade-offs of building on Apple's platform
iOS is a narrow, well-documented target with an audience used to paying — and a gatekeeper between your build and your users. Both halves shape how the app gets written.
- StoreKit 2Purchases & subscriptions
Money moves through StoreKit
Digital goods go through in-app purchase, and Apple takes its cut. The client side is short work with StoreKit 2; the real effort is server-side — verifying signed transactions, handling renewals, grace periods, refunds and billing retry so entitlement state survives a reinstall on a new device.
Why it matters on iOS
- KeychainSecure Enclave-backed keys
The sandbox is not optional
Every app runs sandboxed, with data protection classes on files, the Keychain for secrets and the Secure Enclave for keys that never leave the device. Anything past that — Face ID, HealthKit, background location — is an entitlement plus a usage string you have to justify to a reviewer.
Why it matters on iOS
- HIGHuman Interface Guidelines
The HIG does half the design work
Standard components arrive with Dynamic Type, VoiceOver, reduce-motion and dark mode already handled. Departing from them is allowed and sometimes right, but you then own accessibility yourself, and every OS release that shifts the look underneath you.
Why it matters on iOS
- Dynamic TypeChecked at every size
A device matrix you can hold in your head
A handful of current screen classes and predictable performance floors. The axes people forget are the ones that break layouts: Dynamic Type at its largest setting, iPad multitasking and Stage Manager, landscape, and the oldest device your deployment target still lets in.
Why it matters on iOS
- Swift 6Strict concurrency checking
The toolchain moves every September
A new iOS, a new Xcode, fresh deprecations and, periodically, a new minimum SDK for App Store submissions. Staying close to current is cheaper than a rescue migration later — Swift 6 concurrency checking in particular goes in far more easily module by module than all at once.
Why it matters on iOS
- App ReviewBudgeted into the timeline
Review is part of the release plan
App Review is a human step on a variable clock, and rejections cluster around predictable things: missing privacy manifests and required-reason APIs, tracking without the prompt, no account deletion, sign-in options, subscription screens, and anything that looks like it routes payment around the store.
Why it matters on iOS
Beyond the phone
Every extra target is a real decision
A Watch app, a widget, a Mac build — each is its own target with its own lifecycle, layout rules and review surface, sharing Swift packages with the phone app rather than inheriting its UI. Widgets get a memory budget and a timeline instead of a run loop, tvOS adds the focus engine, Mac adds pointers and resizable windows. We scope each one separately so you can decide which earn their keep.
- iPhone
- iPad
- Mac
- Watch
- TV
What we take on for iOS
New iOS apps, end to end
Discovery through submission: architecture, Swift package layout, the networking and persistence layer, the screens, and the App Store Connect setup. You get the repository, the signing configuration and the pipeline that produced the build — not just an IPA.
Interface work against the HIG
Wireframes and prototypes drawn from real iOS components rather than redrawn ones, so what gets designed is what SwiftUI and UIKit can actually render. Dynamic Type, VoiceOver labels, dark mode and reduce-motion are settled during design instead of retrofitted after QA files them.
Objective-C and UIKit modernisation
Plenty of profitable apps are still Objective-C and storyboard-era UIKit. We move them incrementally — bridging headers where interop is needed, screens migrated behind a flag, CocoaPods traded for Swift packages — so the app keeps shipping while it changes underneath.
Watch, widgets and App Intents
A Watch companion, Home Screen and Lock Screen widgets, Live Activities, Siri and Shortcuts through App Intents, Handoff between devices. Each is a separate target with its own memory budget and review surface; we build the ones that will carry real usage and say so when one won't.
Support, monitoring and OS upgrades
Symbolicated crash and hang reports triaged after every release, MetricKit and Xcode Organizer watched rather than ignored, dependency and certificate expiry tracked, and a planned window each autumn for the new iOS and the SDK bumps it forces.
Privacy, security and review readiness
Privacy manifests and required-reason API declarations, App Privacy answers that match what the code actually collects, the tracking prompt where it applies, Keychain and data-protection review, and a pre-submission pass over the rejection patterns that catch teams out.
How we work on iOS
Swift, SwiftUI and the Objective-C that is still load-bearing
Real codebases are rarely one language. We work across SwiftUI and UIKit, Swift concurrency, and Objective-C where it still runs the business — including mixed targets, bridging headers, and Swift packages replacing CocoaPods one dependency at a time.
Dependencies chosen deliberately
Every third-party SDK is a privacy manifest you now have to ship, a signature you have to trust and a migration you will eventually pay for. Platform APIs come first — URLSession, Core Data or SwiftData, MapKit, AVFoundation — and we go outside for payments, real-time media and analytics, where writing it yourself makes no sense.
Testing before you ever see the build
XCTest for logic, XCUITest for the flows that carry revenue, snapshot checks at the largest Dynamic Type setting, and a device list that includes the oldest hardware your deployment target still admits. CI runs on every pull request; TestFlight builds go out on a cadence you can hold us to.
Releases with a way back
App Store Connect and signing configured under your organisation's account rather than ours, phased release on by default, and a decided plan for what happens when a crash rate spikes on day two — including which build you roll forward to.
Instrumented for what users actually notice
Launch time, scroll hitches, memory ceilings in widgets and extensions, and the battery cost of background work. We profile with Instruments on real hardware before anyone describes the app as fast.
Code and accounts stay yours
The repository, the certificates and the Apple Developer Program membership are in your name. Handover is an architecture walkthrough plus a build another team can reproduce from a clean checkout, not a zip file and good luck.
From Xcode project to phased release
Seven steps, including the two teams routinely underestimate: preparing for review, and the month after the app is live.
- Typical first release3–4 months
- Sprint cadence2-week sprints
- TestFlight buildsWeekly
- Post-launch support6 months free
Step 01
Discovery and scope
What the app has to do, which iOS versions and devices it has to do it on, and what data it touches. The data answer is the important one — it decides your privacy manifest, your entitlements and most of your review risk.
Step 02
Architecture and targets
Module and Swift package layout, the state model, persistence (Core Data, SwiftData or files), and which extra targets — Watch, widgets, share extensions — are in scope now rather than later. The deployment target is fixed here, with the reasoning written down.
Step 03
Interface design
Screens designed in native components, with Dynamic Type, VoiceOver, dark mode and landscape treated as part of the design rather than as a later pass. Prototypes go on a device early — a layout that reads well in Figma often does not survive an iPhone SE.
Step 04
Swift development
Two-week sprints, review on every pull request, and TestFlight builds you can actually install and use. Swift concurrency where it earns its place, previews to keep iteration quick, and performance measured as features land instead of at the end.
Step 05
QA on real devices
XCTest and XCUITest in CI, plus manual passes on the oldest hardware you still support — on a poor network, in Low Power Mode, at the largest accessibility text size. A clean cold launch is a release gate, not a nice-to-have.
Step 06
Submission and review
App Store Connect metadata and screenshots at every required size, App Privacy answers matched against what the code collects, privacy manifests, export compliance, and a reviewer note explaining anything unusual. If a rejection comes back, we write the response.
Step 07
After launch
Six months of post-launch support: crash and hang triage on symbolicated builds, phased release watched day by day, and the compatibility work each new iOS forces — planned, rather than discovered in your App Store reviews.
iOS App Development — FAQ
The questions that come up
before an iOS build
Ownership, App Store review, versions, cost and how we work day to day. If yours isn't here: Ask us directly.
Tell us what you're
trying to build
The problem, who it's for, and where you are now. That's enough for us to come back with something useful.
hello@aryavos.com
HQ
Noida, India & New York, USA
What happens after you send it
A developer reads it, not an auto-responder. Expect questions about scope and constraints first, then a suggested way to start.