Building high-performance iOS apps from scratch using Swift and SwiftUI, fully aligned with Apple's Human Interface Guidelines (HIG).
Native iOS App
Development Services
for iPhone & iPad
App Store-Ready Engineering. Swift & SwiftUI. Built to Scale.
At Capital Compute, we build polished, native iOS products for UK startups and enterprises. From HealthKit integrations to Apple Pay and connected-device companion apps, our senior engineers deliver secure, high-performance applications with a fixed-price estimate in 2 business days.
Get a Free Project Estimate
Internal Swift & iOS engineers only
Fixed-price estimate in 2 days
GDPR & Apple App Store compliant
UK-based client coordination
Internal Swift & iOS engineers only
Fixed-price estimate in 2 days
GDPR & Apple App Store compliant
UK-based client coordination
Internal Swift & iOS engineers only
Fixed-price estimate in 2 days
GDPR & Apple App Store compliant
UK-based client coordination
Internal Swift & iOS engineers only
Fixed-price estimate in 2 days
GDPR & Apple App Store compliant
UK-based client coordination
SERVICES
Our iOS App Development Services
Seamless integration with HealthKit, Apple Pay, FaceID/TouchID, Push Notifications, CoreData, and native hardware features.
Developing local storage systems and robust background syncing pipelines so your app works seamlessly under poor connectivity.
Handling the entire App Store submission process, ensuring compliance with Apple's strict privacy and security guidelines.
Modernizing legacy Objective-C codebases or older UIKit designs into modern, clean, component-based Swift and SwiftUI architectures.
Comprehensive monitoring and optimization support post-launch, with optional ongoing service-level agreements (SLAs).
Tech Stack
The Right Tool for the Right Job - 20+ Production-Tested Technologies
Web
JavaScript 
TypeScript 
React 
Angular 
Vue 
Next.js 
Astro 
Node.js Mobile
React Native
Swift 
Kotlin 
Flutter 
Ionic Desktop
Electron 
Tauri
Cloud, Data &
Analytics
Analytics
AWS
AWS
AZ
Azure
PostgreSQL 
MySQL 
MongoDB 
Analytics BI
AI & Automation
OA
OpenAI
Claude 
Python 
Vector Search 
Automation
Benefits
4 Native Advantages of Swift & SwiftUI for Your iOS Application
Uncompromised Native Performance
Direct access to metal APIs and native hardware features ensures smooth animations, zero lag, and minimal battery drainage.
Apple Design System Cohesion
SwiftUI components render using Apple's default UI elements, matching system themes, dark/light modes, and dynamic text sizes natively.
Robust Security & Biometrics
Leveraging Keychain Services, Face ID/Touch ID biometrics, and sandboxed storage limits vulnerability to data leaks.
App Store Approvals by Design
We write clean code adhering strictly to Apple Guidelines, minimizing the risk of rejections during the App Store review phase.
iOS Experts
Embedded iOS Engineering Squads in 10-14 Days
We deploy internal senior Swift/SwiftUI engineers directly to your team, providing immediate development momentum, clean MVVM architectures, and daily communication.
All developer profiles are vetted and mapped to your specific stack needs, ensuring they contribute high-quality code from day one.
No outsourcing or subcontractors. Capital Compute engineers only.
- Direct Slack communication with developers
- Sprint reviews and pull requests on your cadence
- App Store compliance and build pipeline defined in Week 1
Get an iOS App blueprint
Why choose us
What Separates Our iOS Engineering Team From Other Agencies
No Junior Guesswork on Core iOS Logic
Mobile app crashes ruin user retention. We staff every engagement with senior iOS engineers who understand memory management, local caching, and secure API integration.
From thinking to thriving
iOS App Engineering: Scoping to App Store Launch
01
STEP 1
Architecture & API Scoping
Mapping out app states, navigation flows, and database schemas. Specifying API contracts and OAuth integrations.
02
STEP 2
SwiftUI UI/UX Prototyping
Setting up project templates, CI/CD pipelines via TestFlight, and designing the initial UI components.
03
STEP 3
Sprint-Based Development
Implementing features, integrating SDKs, and wiring up state managers (Combine or SwiftData) with regular TestFlight builds.
04
STEP 4
App Store QA Auditing
Vulnerability analysis, memory leak tracing in Xcode Instruments, and validation against Apple App Store Guidelines.
05
STEP 5
Release & Warranty Phase
Publishing to the App Store, setting up production monitoring, and initiating our 90-day post-launch warranty.
SECTORS WE SUPPORT
iOS Deployments Across UK Industries
Native iOS wallets integrating Apple Pay, FaceID authentication, and encrypted local storage for secure open-banking platforms.
HIPAA and UK GDPR-aligned applications integrating Apple HealthKit, biometric login, and secure patient-doctor chat features.
Polished shopping experiences with Apple Pay checkout, real-time inventory sync, and target push notifications for user retention.
Companion apps communicating with hardware over CoreBluetooth, setting up home devices, and displaying live data dashboards.
CASE STUDY 
Building WeWalk: iOS Fitness Tracking with HealthKit Integration
View Case Study → Connected IoT fitness tracking platform
We engineered a native iOS step-tracking capability, HealthKit integration layers, and Bluetooth pairing mechanisms to sync real-time physical activity directly to a custom IoT wall clock display.
55 days Build time
HealthKit
BLE
Integrations BLE
100% Real-time sync
Service model
Choose from our hiring models
Starter
Developer + Basic AI workflow
- ★ Dedicated dev
- ★ AI workflow
- ★ Cost efficient
Most Popular
Developer + Part time Technical Architect + Basic AI Workflow
- ★ Dedicated dev
- ★ AI assisted delivery
- ★ Scalable structure
Scale
Developer + Part time Technical Architect + Advanced AI Workflow
- ★ Dedicated dev
- ★ Unlimited AI credits
- ★ Faster iterations
FAQs
iOS App Development Services FAQ
We build native iOS applications using Swift and SwiftUI, Apple's modern, recommended programming language and declarative UI framework. This ensures native performance, excellent battery optimization, and fluid animations.
We manage the entire submission process, including setting up certificates, provisioning profiles, App Store Connect metadata, privacy declarations (Apple Privacy Manifests), and TestFlight beta distributions. We support you until the app is approved and live.
Yes. We have extensive experience building companion apps that interact with external hardware or IoT devices via CoreBluetooth, Wi-Fi, or NFC, as demonstrated in our WeWalk case study.
Absolutely. All our applications are designed with secure local storage (Keychain, encrypted databases), secure SSL pinning for network requests, and GDPR-compliant user data handling protocols.
Yes. Every project includes a 90-day post-launch warranty covering any bugs or performance issues. We also offer monthly support SLA packages to keep your app up-to-date with new iOS releases.
- FINAL STEP -
Ready to Build Your iOS Application?
If you need a native iOS app built with Swift and SwiftUI, our senior engineering team is ready to deliver.
Every project starts with a 30-minute scoping call, yielding a technical roadmap and a fixed-price estimate in 2 business days.
Average response time: <4 business hours
UK • USA • Canada • Australia • Middle East