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iOS App Development Company in the UK
Our iOS developers build native iPhone, iPad and Apple Watch apps in Swift and SwiftUI. They design to Apple’s guidelines and integrate Apple Pay, HealthKit and other frameworks. We manage App Store submission and keep your app current with every iOS release.
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Selected iOS App Work
Custom iOS App Development for UK Businesses
Influxive AI Labs is an iOS app development company building native iPhone and iPad apps for UK startups, SMEs and enterprises. Our Swift developers design, build, test and release bespoke iOS apps, then assess each new iOS version for compatibility issues and deprecations.
- 10
- 5
- 15
- Bespoke iOS apps developed
- iPad app development
- Years on iOS App development
Native iOS capabilities
Apple Features We Integrate
Great iOS apps make good use of Apple's own frameworks. We build with them so your app works the way iPhone and iPad users expect, from one-tap Apple Pay checkout to timely push notifications, location features and consent-based health data.
HealthKit
Consent-based health and fitness data sharing.
MapKit location
Maps, directions and location-aware features.
Push notifications
Timely, segmented alerts that bring users back.
Face ID
Secure biometric sign-in with Face ID.
Widgets and App Intents
Home Screen widgets, Siri and Shortcuts support.
Our capabilities
iOS App Development Services UK
From first concept to App Store and beyond, we cover every stage of custom iOS app development. Choose end-to-end delivery or bring us in for a specific need: design, native engineering, integrations, testing or release support.
Layer 1
Build
Native Swift and SwiftUI apps.
Layer 2
Payments and additional capabilities
Secure, compliant checkout and subscriptions.
Apple PayIn-app purchasesSubscription billing
Layer 3
Integrations
Connect your app to existing systems.
API integrationCRM and ERP integrationApple frameworks
Layer 4
Release
Testing, submission and ongoing updates.
TestFlight testingApp Store submission
Serving clients across the UK
iOS Developers Across the UK
We work remotely with businesses throughout England, Scotland, Wales and Northern Ireland, with structured communication and working hours that overlap the UK business day.
Regions 01 of 10
London & South East
An iOS app development company London startups, fintechs and established brands can work with remotely.
LondonLondon
For London teams, our iPhone app developers can ship MVPs quickly, extend in-house squads or modernise customer apps, with fixed-scope quotes and weekly demos over video call.
Also supporting
iOS security
Security Built Into YouriOS App
We plan protection around the data your app handles: secure connections, appropriate on-device storage, controlled access and tested releases. Controls are selected for the project and reviewed alongside its backend.
Layer 01
Secure connections
Protect data in transit.
- HTTPS and certificate validation
- App Transport Security
Layer 02
Data and access
Limit access to sensitive information.
- Keychain for secrets
- Appropriate file protection
- Server-side authorisation
Layer 03
Privacy by design
Collect only what the app needs.
- Purpose-specific permissions
- Data minimisation
- Sensitive data excluded from logs
Layer 04
Review and maintain
Check controls and address findings.
- Dependency and code review
- Security testing
- Updates and incident planning
- Your iOS app
Security controls reduce risk; they do not guarantee that an app cannot be compromised.
Connecting iOS app development
Integrations That Fit Your Apple Stack
Your iOS app is only as useful as the systems behind it. We connect iPhone and iPad apps to your CRM, ERP, payment providers, analytics and back-end APIs, so data stays accurate, secure and in sync across your business.
iOS App
The iOS app at the centre of your systems.
CRM ⇄ iOS App
Real timeiOS App sends
- Leads
- App activity
- Bookings
iOS App receives
- Profiles
- Account status
- Customer segments
Source of truth: CRM holds customer records
Common UK platforms: Salesforce, HubSpot, Dynamics 365
Built around your systems
We map every data flow before coding, agree which system owns each record, then build secure, documented integrations your team can monitor and extend.
Clear ownership
Every record has one source of truth, agreed upfront.
Secure transfer
Encrypted connections, token-based authentication and least-privilege access on every integration.
Offline ready
Changes made without signal are queued and synced safely later.
Monitoring
Logging and alerts flag failed syncs before your users notice them.
Documentation
Your team receives clear documentation for every integration.
How we deliver
Our iOS App Development Process
A clear, four-stage process takes your iOS app from idea to App Store, with fixed milestones, weekly demos and no surprises on scope or cost.
01Stages 1–3
Discover
We define goals, users, features and budget before design starts.
01
Discovery workshop
Goals, users and success measures.
02
Scope and estimate
Fixed-scope plan with clear costs.
03
UX and prototypes
Interactive design prototypes for your sign-off.
02Stages 4–5
Build
Native Swift and SwiftUI development in sprints, with TestFlight builds.
04Two weeks
Sprint build
Features built, reviewed and demoed.
05Ongoing
Integrations and Apple features
APIs, payments and Apple frameworks connected securely.
Native-first engineering
Native iPhone and iPad builds
Swift and SwiftUI code that's fast, accessible and maintainable.
- Swift and SwiftUI, built to last
- Code reviews on every pull request
- Automated tests for core user journeys
- Accessibility built in from the start
- Security and UK GDPR-conscious handling of personal data
- You own all code
TestFlight builds every sprint, so you test progress on your device.
03Stages 6–9
Test
Thorough testing across devices, iOS versions and real-world network conditions.
06
Functional testing
Every feature checked against acceptance criteria.
07
iPhone and iPad compatibility
Multiple devices and iOS versions.
08
Performance and battery checks
Speed, memory and crashes.
09
Accessibility testing
VoiceOver, Dynamic Type and contrast checks.
04Stages 10–12
Launch and support
App Store release, then ongoing maintenance and improvements.
10
TestFlight beta
Real users test before public launch.
11
App Store
Listings prepared; App Review supported.
12
Maintenance and updates
Compatibility checks, fixes, phased updates.
Work with us
Hire UK iOS app developers for your team
Need extra iOS capacity? Hire dedicated iOS developers and Swift developers who can join your team, follow your processes and work in your tools. Choose a full product team for a new app or add specialists to an existing squad. Our iOS developers can work remotely or on-site depending on your favourability.
Remote, UK-aligned
Working hours overlap the UK day
Dedicated developers
Swift developers committed to your product.
Team augmentation
Add iOS specialists to your existing in-house team.
Product squads
Design, development and QA delivered as one team.
Clear communication
Weekly demos and written updates.
Retainers
Flexible iOS development retainer for ongoing work.
Transparent pricing
Fixed-scope quotes in pounds sterling, with no hidden extras.
Working arrangements
Access, ownership and handover
We agree who controls accounts, how decisions are recorded and what your team receives at handover before work begins.
Access and ownership
- Client-controlled Apple Developer and App Store Connect accounts
- Role-based access to repositories and project tools
- Source-code ownership and third-party licences documented in the agreement
Communication
- One named delivery lead and agreed overlapping hours
- Regular demonstrations and written progress updates
- Decisions, approvals and escalation routes recorded
Handover
- Source code, build instructions and architecture notes
- Account access and signing arrangements documented
- Knowledge-transfer sessions and agreed support responsibilities
100%
IP ownership transferred
No timezone
Problems
Native
Swift-first engineering
Frequently Asked Questions
Everything you need to know before getting started.
Average response time
24 Hours
Project consultation
Free
Enterprise-ready
✓ Trusted Delivery
Cost depends on the number of features and screens, whether you need iPhone only or iPad and Apple Watch too, the Apple frameworks involved, such as HealthKit, Apple Pay or widgets, back-end integration and security requirements. Modernising an existing app is priced differently from a new build. We provide a fixed-scope estimate after discovery.
The timeline for a focused iOS app is confirmed after discovery; larger apps with complex integrations or several Apple devices can take a few months. Work runs in fortnightly sprints, with TestFlight builds you can install on your own iPhone. We also allow for App Store review and Apple’s annual iOS release cycle when planning launches.
We compare the Apple features you need, performance requirements, supported devices, budget and maintenance plans. Native Swift and SwiftUI can suit apps with deep Apple-platform integration or demanding interfaces. Cross-platform development can share code between iOS and Android, but platform-specific work may still be needed. We explain the trade-offs before recommending an approach.
We adapt navigation and layouts to each screen size rather than stretching an iPhone design. Testing covers agreed device models and operating-system versions using physical devices, simulators and automated tests. We check accessibility, including VoiceOver and Dynamic Type, plus performance, connectivity changes and key user journeys. TestFlight lets your team review builds before release.
Yes. We assess the code, dependencies, supported devices and App Store requirements before recommending changes. Work may include migrating Objective-C to Swift, updating UIKit screens, adopting SwiftUI where useful and replacing deprecated APIs. We plan changes in manageable phases, test affected journeys and monitor releases to reduce disruption.
Yes. We connect apps to suitable APIs for CRM, booking, loyalty, payments and other business systems, adding backend services where needed. We can also integrate Apple features such as Apple Pay, biometric authentication, push notifications and HealthKit where appropriate. Availability, permissions, privacy requirements and payment rules are assessed for each feature before implementation.
Yes. We distribute beta builds through TestFlight, gather feedback and prepare App Store Connect listings, screenshots, privacy information, review notes and test accounts. We manage submission and respond to reviewer questions. Apple makes the final approval decision, so review time is allowed for in the release plan rather than guaranteed.
We agree security requirements during discovery and review the app, backend and data flows together. Practices include HTTPS with certificate validation, appropriate Keychain storage for secrets, restricted access, minimal permissions and avoiding sensitive data in logs. We review dependencies and test relevant security controls. For sensitive systems, we agree whether independent penetration testing is needed and document responsibilities for ongoing protection.
Building for iPhone?
Native iOS Apps That Feel Right on Apple Devices
Tell us about your app idea or existing iOS product, the Apple features you need and your target users. We will recommend an approach, flag App Store considerations early and outline a phased plan.
Start Your Digital Journey
If your organization depends on digital platforms for operations, communication, and compliance readiness, it is worth discussing how those systems are structured.