Creative Marketing
    iOS App Development

    iOS apps built in Swift and approved on the App Store

    Native iPhone and iPad apps designed, engineered and taken through Apple App Review to a live App Store listing.

    SwiftUI interfaces, TestFlight beta rounds, App Store Connect release management and the privacy work Apple insists on — handled before we submit, not after a rejection.

    iPhone in hand displaying a polished native iOS app interface

    Image: AI Generated

    What is iOS app development?

    iOS app development is building an application for Apple devices using Swift and SwiftUI in Xcode, testing it through TestFlight, and publishing it to the App Store via App Store Connect. Apple reviews every submission against its App Review Guidelines, so privacy, account deletion and complete functionality have to be right before the app goes live.

    iOS build facts

    Languages & frameworksSwift, SwiftUI, UIKit where legacy support is needed.
    ToolingXcode, TestFlight, App Store Connect, Instruments for performance.
    Apple Developer Program$99 per year, held in your company's name; enrolment can take a few days for organisations (D-U-N-S number required).
    Review turnaroundMost apps get a decision within 24–48 hours of submission.
    Common rejection reasonsNo account deletion, incomplete features, misleading metadata, unclear data collection, broken third-party sign-in.
    Minimum supported iOSUsually the current version and the two before it, covering effectively all active devices.
    The Service

    What iOS app development involves

    iOS app development is building an app specifically for Apple's platform — iPhone, iPad and, where relevant, Apple Watch — using Swift and SwiftUI inside Xcode, then distributing it through TestFlight and the App Store.

    Apple's review process is stricter than Google's. Apps get rejected for missing account deletion, unclear data use, incomplete functionality, broken sign-in, or a privacy manifest that doesn't match what the app actually does. We treat those requirements as build requirements.

    Native iOS is the right call when the app depends on performance, hardware features, offline behaviour or a genuinely Apple-native feel. When it doesn't, we'll say so and point you at cross-platform.

    Outcomes

    Real business outcomes, not vanity metrics

    Every engagement is built around measurable commercial impact — from revenue and leads to retention, efficiency and operational scale.

    A native iPhone and iPad app live on the App Store
    TestFlight builds your team can use from week three
    Privacy and App Review requirements handled up front
    Apple Developer account owned by your company
    Sign in with Apple, push and payments where needed
    A release process you can keep using after launch
    What's Included

    What we build & deliver

    Swift & SwiftUI engineering

    Modern native iOS built the way Apple expects, so it stays supportable through OS releases.

    iPhone, iPad & Watch

    Adaptive layouts across device sizes, plus Apple Watch and widgets where they add real value.

    Privacy & App Review readiness

    Privacy manifests, permission strings, account deletion, ATT and UK GDPR alignment before submission.

    Apple ecosystem integrations

    Sign in with Apple, Apple Pay, in-app purchase, HealthKit, MapKit, push and CloudKit.

    TestFlight & release management

    Internal and external beta rounds, phased releases and version management in App Store Connect.

    Analytics & App Store metrics

    Event tracking plus impressions, conversion and crash monitoring read straight from Apple's own data.

    Who It's For

    Built for growing businesses

    Founders with an iPhone-first audience

    Consumer products where the majority of paying users are on iOS.

    Premium and service brands

    Businesses whose customers expect an app that feels genuinely native, not a wrapped website.

    Companies replacing a legacy iOS app

    Old Objective-C or unsupported apps that need rebuilding before Apple stops accepting updates.

    Field and clinical teams

    Internal iPad and iPhone tools with offline use, secure data and device integrations.

    Our process

    01

    Scope & Apple requirements

    MVP definition plus the review, privacy and account requirements Apple will hold you to.

    02

    Design & prototype

    iOS-native interaction patterns designed and tested before engineering.

    03

    Swift build & TestFlight

    Sprint builds distributed via TestFlight so stakeholders use the real app early.

    04

    Submit to App Review

    Store assets, privacy declarations and submission, including responses to any review feedback.

    05

    Launch, monitor, iterate

    Phased release, crash and performance monitoring, then a steady release cadence.

    Free App Scope & Estimate

    Get a real scope and a real number for your app

    Tell us what the app needs to do and we'll come back with a scoped feature list, a realistic timeline to App Store and Google Play approval, and an itemised cost — including what it costs to run, not just to build.

    No spam. Unsubscribe any time.

    FAQ

    Frequently Asked Questions

    Modern iOS apps are built in Swift, usually with SwiftUI for the interface, developed in Xcode. UIKit is still used where an existing app or a specific control requires it.

    Most submissions receive a decision within 24 to 48 hours. Rejections are common on first attempts, typically for missing account deletion, incomplete functionality, unclear data collection or metadata that doesn't match the app.

    The Apple Developer Program costs $99 per year. Organisation accounts require a D-U-N-S number and can take a few days to verify, so we start enrolment early. The account stays in your company's name.

    No. We build and submit from our own environment. You only need an iPhone or iPad to test builds we send you through TestFlight.

    TestFlight is Apple's beta distribution system. It lets your team and selected external testers install pre-release versions of the app on real devices before it goes public on the App Store.

    The most frequent causes are no in-app account deletion, incomplete or placeholder functionality, sign-in that reviewers cannot complete, privacy declarations that don't match actual data use, and misleading screenshots or descriptions.

    Yes. We build adaptive interfaces across iPhone and iPad, and add Apple Watch apps, widgets or App Clips where they genuinely add value rather than as a checkbox.

    Yes. Sign in with Apple is required by Apple in certain cases where other third-party sign-in options are offered, and we implement Apple Pay and in-app purchase where the business model calls for it.

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