Intelivita

iOS App Development Company in UK

Intelivita is a UK iOS app development company building native applications for iPhone, iPad and Apple Watch, as well as iOS games. Our iOS developers use Swift and Apple technologies to turn your requirements into a tested, App Store-ready iOS application.

DISCUSS YOUR iOS APPView Our Work

Trusted by leading organisations and growing UK businesses

oxitecMicrosoftAkzoNobelEPCENDO1000Local Linked
Strategy
UI/UX Design
Development
Testing
Launch
Support
Growth

What iOS app development services do we offer?

Intelivita provides iOS app development services for iPhone, iPad and Apple Watch, covering UI/UX design, development, testing, App Store deployment and ongoing maintenance.

iPhone App Development

Swift • SwiftUI • App Store

We build native iPhone apps in Swift and SwiftUI, covering UI/UX, backend integration, APIs, testing, and App Store deployment. Our developers follow Apple’s platform standards from development through App Store release.

iPad App Development

ADAPTIVE LAYOUTS • SPLIT VIEW • APPLE PENCIL

We build native iPad apps with layouts optimised for larger screens and different device models. Features include Split View and Apple Pencil support where needed, built for your business workflows, customer-facing tools, and other specialised use cases.

Apple Watch App Development

WATCHOS • WIDGETKIT • COMPLICATIONS

Our developers build native Apple Watch apps using Swift and WatchKit for real-time alerts, health tracking and quick user interactions. We integrate HealthKit, fitness data, sensors and haptic feedback based on your app requirements.

iOS Game Development

GAMEKIT • STOREKIT • IN-APP PURCHASES

We build iOS games with polished graphics, smooth gameplay mechanics, and in-app purchase integration. From casual titles to complex 3D experiences, our iOS Game development services cover design, development, testing, and App Store launch support.

iOS App Design

HUMAN INTERFACE GUIDELINES • WIREFRAMING • PROTOTYPING

We design intuitive iOS app interfaces following Apple's Human Interface Guidelines. From wireframes to high-fidelity prototypes, our designs focus on usability, visual consistency, and smooth navigation, creating experiences that feel native and easy for users to adopt.

iOS App Testing

XCTEST • UI TESTING • TESTFLIGHT

Our iOS app testing services validate your app’s functionality, usability, performance, and compatibility before launch. Our QA team tests user flows, interface behaviour, and network conditions using manual and automated testing, while identifying bugs and checking App Store requirements before submission.

iOS App Maintenance

iOS UPDATES • BUG FIXES • DEPENDENCY UPDATES

Our ongoing iOS app maintenance and support keeps your application stable, secure, and up-to-date after launch. We handle iOS version updates, bug fixes, crash log analysis, API upgrades, and App Store compliance checks. We also monitor app usage, update libraries and dependencies, and ensure compatibility with new iOS versions.

Our iOS app development portfolio & case studies

We have delivered 25+ custom iOS apps for businesses across the UK. Our case studies cover project scope, features, development timelines, business outcomes, and App Store delivery across iPhone, iPad, Apple Watch, and iOS games.

Sports

Pickleball Coaching App With Personal Training Plans and Video Feedback

We designed and built Elite Pickleball Coaching, a mobile app that gives players coach-assigned training plans and video feedback, with a web portal for coaches and an admin panel.

UI/UX Design · iOS and Android App · Coach Portal · Admin Panel

500+ Google Play downloads · 5.0 App Store rating

View EPC case study
Elite Pickleball Coaching mobile app

Healthcare

Endometriosis Research App Reaches 2,000+ Registered Users

We designed and built ENDO1000, an iOS and Android app that turns everyday symptom tracking into research data, with a web dashboard for the clinical team.

UI/UX Design · iOS and Android App · Web Dashboard

500+ Google Play downloads · 5.0 App Store rating

View ENDO1000 case study
ENDO1000 healthcare app displayed on a smartphone beside its web dashboard

Local Commerce

Student Rewards App Signs Up 40+ Local Businesses in Portsmouth

We designed and built LocalLinked, an app that rewards university students for supporting local businesses and charities, with a web platform for partners.

UI/UX Design · iOS and Android App · Web App

500+ Google Play downloads · 4.7/5 App Store rating

View LocalLinked case study
LocalLinked mobile app showing local community content on a smartphone

Ready to Build Your iOS App?

Turn your app idea into a clear development plan. Discuss your iOS app requirements, features, technology approach, timeline, and budget with our development team.

Discuss Your iOS App

Why choose Intelivita for iOS app development services?

Choose Intelivita for iOS app development in the UK for proven Apple platform expertise, end-to-end delivery, performance-focused engineering, local collaboration, and a clear focus on business outcomes.

Experienced iOS Team

We have 13+ years of experience building robust, scalable iOS applications using Swift, SwiftUI, UIKit, Core Data, and Apple APIs across iPhone, iPad, and Apple Watch.

Full-Cycle iOS Development

We provide full lifecycle services from strategy and UI design to development, testing, App Store submission, and post‑launch support.

Apple-Standard Engineering

Our developers optimise apps for speed, security, and UI interactions that align with Apple’s standards and improve user engagement.

UK-Focused Collaboration

We work closely with clients in London, Manchester, Brighton, and across the UK, ensuring clear communication, timely milestones, and aligned business goals.

iOS Apps Built for Growth

We focus on deliverables that support higher customer retention, revenue growth, and competitive positioning in the iOS app marketplace.

What is the process of iOS app development at Intelivita?

Intelivita follows a 5-step iOS development process to ensure every app meets performance, design, and business goals.
01

Discovery and Planning

We define app goals, target devices, core features, and integration needs while mapping the technical scope and timeline.
02

iOS UI/UX Design

Our designers create wireframes and visual layouts following Apple’s Human Interface Guidelines, customised for iPhone and iPad screen behaviours.
03

Native App Development

Our developers build the frontend and backend using Swift, SwiftUI, and Apple APIs while integrating third-party services and ensuring secure architecture.
04

Testing, QA, and Compliance

We perform both manual and automated testing of apps across multiple devices to check performance, usability, and App Store guideline readiness.
05

Launch & Ongoing Support

We submit the app for review, manage deployment, and help create iOS app experiences backed by ongoing support for version updates, feature rollouts, and user feedback.

What are the benefits of iOS app development for UK businesses?

iOS development offers UK businesses a strong platform to build secure, high‑value mobile applications for growth and long‑term performance.

Access to high‑value users

iOS apps reach users with higher purchasing power and stronger engagement across the UK market.

Strong security and data protection

Native iOS apps support secure login, payments, and data handling that meet strict privacy standards.

Better app performance and stability

Native iOS development delivers faster load times, fewer crashes, and consistent performance across devices.

Higher App Store visibility

iOS apps benefit from structured App Store standards that support quality ranking and visibility.

Long‑term scalability for businesses

iOS apps support regular updates, feature expansion, and integration with Apple devices and services.

iOS app development technologies

Intelivita uses trusted Apple technologies and industry-specific tools to build secure, high-performance iOS applications for iPhone, iPad, and Apple Watch.

Native iOS Development

Native Apple technologies for fast, responsive iPhone and iPad applications.

  • SWIFT
  • SWIFTUI
  • UIKIT
  • OBJECTIVE-C
  • XCODE

Apple Frameworks & APIs

Apple frameworks for data, device features, health, location, and platform integrations.

  • CORE DATA
  • HEALTHKIT
  • OTHER VERIFIED APPLE FRAMEWORKS

Backend, APIs & Data

Scalable backend systems, APIs, real-time functionality, and reliable data architecture.

  • NODE.JS
  • .NET
  • PYTHON
  • POSTGRESQL
  • MYSQL
  • FIREBASE
  • REST APIs

Cloud & DevOps

Secure cloud infrastructure and automated application delivery for iOS products.

  • AWS
  • AZURE
  • DOCKER
  • KUBERNETES
  • BITBUCKET

iOS Testing & Quality Assurance

Testing tools and processes for app quality, performance, compatibility, and reliability.

  • XCTEST
  • XCUITEST
  • other verified testing tools

iOS Design & Prototyping

User-centred iOS design from wireframes and user flows to interactive prototypes.

  • FIGMA
  • FIGJAM
  • WIREFRAMES
  • INTERACTIVE
  • PROTOTYPES
  • DESIGN SYSTEMS

What our clients say

“What stood out most about Intelivita was their ability to operate as a true delivery partner rather than just a development vendor. They combined strategic input with hands-on execution, helping shape the product while also building it.”

Verified Clutch review

Frankie Cieslik

Frankie Cieslik

Director, CTO, LocalLinked Ltd

“Intelivita has developed an app that can dynamically display research questions and support a participant through all stages of their research journey.”

Verified Clutch review

Jordan Doust

Jordan Doust

Data Manager, University of Edinburgh

“What stood out most about Intelivita was the balance between professionalism and personal approach, which made the entire development process both efficient and enjoyable.”

Verified Clutch review

Nicholas Boundy

Nicholas Boundy

Executive, FabQuote

Frequently asked questions

What is iOS app development?

iOS app development is the process of creating an app for Apple devices, including iPhone, iPad, and Apple Watch. Developers use Swift or Objective-C to write code that meets Apple's technical and design standards. The process includes backend integration and final submission to the App Store to ensure the iOS app development project runs at every stage.

How much does iOS app development cost in the UK?

An iPhone app from Intelivita costs £12,000–£120,000+, excluding VAT. This includes UI/UX design and development, covering the database, back end, APIs and integrations needed to make your app functional. Design accounts for £4,000–£20,000 of that total, depending on the user journeys, screens and complexity.

We build most apps using Flutter or React Native, so this price usually covers both an iPhone and an Android app. You receive a fixed price for the agreed scope before work begins.

Post-launch support costs £400–£2,000 per month, excluding VAT, depending on the complexity of your app and its underlying systems.

We generally recommend native development when you already have a native app that needs updating or ongoing maintenance.

How long does it take to build an iOS mobile application?

It takes 4 to 16 weeks to build an iOS mobile application in the UK. A simple app with core features and limited screens can take 4 to 6 weeks. Medium-complexity apps with user accounts, API connections, and basic CMS take around 8 to 12 weeks. Advanced apps with custom features, animations, backend systems, and third-party integrations can require 12 to 16 weeks or more.

How do I find the right iOS app development agency?

You can find the right iOS app development agency through our site, hire iOS app developers at Intelivita and get a technical team handling design, development, and deployment under one roof.

Who owns my iOS app and source code?

You own 100% of the source code and intellectual property once development is complete. We transfer full ownership, including design files and backend access, with no licensing restrictions or hidden retainer requirements.

Can you take over and improve an existing iOS app?

Yes, we can take over and improve an existing iOS app, even if another agency built it. Our team audits the current codebase, identifies performance or security gaps, and continues development without requiring a full rebuild.

Fixed-price vs. hourly iOS app development: which is right?

Fixed-price works best for well-defined projects with a clear scope and set features. Hourly billing suits ongoing development, evolving requirements, or apps needing frequent iteration based on user feedback.

Should I choose native iOS or cross-platform development?

Choose native iOS development for your apps if you need top performance, deep hardware integration, or advanced UI. Cross-platform suits simpler apps targeting iOS and Android on a tighter budget and timeline.

Do you provide ongoing iOS app maintenance and support?

Yes, we provide ongoing iOS app maintenance and support after launch. It includes bug fixes, iOS version compatibility updates, security patches, and performance monitoring to keep your app stable long-term.

How much does it cost to maintain an iOS app?

iOS app maintenance costs £400-£2,000 per month, depending on app complexity and support requirements. This covers security updates, iOS upgrades, bug fixes, maintenance, and ongoing improvements.

Can you sign an NDA for my iOS app idea?

Yes, we sign an NDA before any discussion of your iOS app idea begins. It protects your concept, data, and business details, giving you full confidentiality throughout the development process.

Will you help with Apple App Store submission and approval?

Yes, we handle the full Apple App Store submission process. Our team prepares the build, sets up the App Store listing, and configures app settings in App Store Connect. We check for compliance with Apple's review guidelines before submission.

Should I choose native iOS development or Flutter for my mobile app?

Choose native iOS if you need high performance, deep hardware access, or Apple-specific features with full App Store compliance. Choose Flutter if you are targeting iOS and Android together with shared code, faster timelines, or a limited budget, ideal for MVPs and simpler UIs.

What is the difference between iOS development and React Native development?

iOS development uses Apple's native tools to build apps only for iOS, while React Native Development allows us to build apps for iOS and Android SDK using a shared codebase. The following table explains the main differences in code reusability, performance, and time to market.

FactoriOS DevelopmentReact Native Development
Code ReusabilityCode is written specifically for iOSOne codebase runs on both iOS and Android
PerformanceHigh performance with full native accessSlight performance trade-offs due to abstraction
Time to MarketLonger when building for platformsFaster launch using shared development efforts
Platform FeaturesFull support for Apple-specific featuresNeeds custom modules to access native features
UI ConsistencyFollows Apple's interface standardsRequires adjustments to match iOS design

Can you build both iOS and Android apps together?

Yes, we build both iOS and Android apps together using native or cross-platform frameworks like Flutter, depending on your budget and requirements. Our Android services run with iOS development for a consistent experience and shared timeline.

Turn your product idea into a clear plan

Tell us about your idea, existing product or next phase. We'll review your goals, users and essential features, then outline a practical scope, delivery approach, timeline and expected cost with no obligation to proceed.

DISCUSS YOUR PROJECT
iOS App Development Company | iPhone App Developers – Intelivita