How do you collaborate with London clients remotely?

We use Slack for daily communication, Notion for project documentation, and video calls for weekly reviews — all during London business hours. Our developers are available GMT/BST.

What is the typical cost for app development from a London perspective?

London agencies typically charge £80,000–£250,000+ for a full app. Our equivalent-quality work starts from £18,000, leveraging India's engineering talent with a UK-grade delivery process.

Can you integrate with UK payment gateways like Stripe or PayPoint?

Yes. We have deep experience integrating Stripe, Braintree, PayPoint, and custom Open Banking APIs into mobile apps for UK clients.

Do you sign NDAs with London clients?

Absolutely. An NDA is a standard part of our engagement agreement. Your IP, code, and business logic remain yours entirely.

How do you handle UK GDPR requirements for mobile apps?

We implement consent management, data minimisation, right-to-erasure flows, and secure data storage practices aligned with ICO guidance for UK-based mobile applications.

London, UK · Mobile Apps

Mobile App Development Company in London

Helping London startups and SMEs ship polished iOS and Android apps. British-timezone friendly, senior developers, transparent fixed-price engagements.

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What We Deliver

London businesses trust InfinityStack to deliver high-quality mobile apps without the London agency price tag. Our team of senior React Native, Swift, and Kotlin developers operates during UK business hours to keep your London team informed and in control. From fintech apps in Canary Wharf to retail apps for Oxford Street brands, we build mobile solutions that win on the UK App Store and Google Play.

GMT/BST timezone alignment — available during London business hours
Senior-only developers, no juniors on your project
Fixed-price contracts — no surprise invoices
Fintech, retail, health-tech and SaaS app expertise
UK GDPR and FCA-awareness built into architecture
App Store Optimisation (ASO) for the UK market

Services & Capabilities

Fintech App Development

PCI-DSS aware payment flows, Open Banking integrations, and secure financial data handling for London-based fintech companies.

iOS Development

Native Swift apps for iPhone and iPad, designed to meet Apple's strict UK App Store review standards.

Android Development

High-performance Kotlin apps targeting the broad UK Android user base across Samsung, Google Pixel, and more.

Cross-Platform with React Native

Ship to iOS and Android simultaneously — the smart choice for London startups managing tight budgets and timelines.

Backend API Development

Custom Node.js and Next.js APIs that power your London mobile app with speed, security, and scalability.

App Store Optimisation

Keyword research, screenshot design, and A/B tested listings to maximise organic downloads on the UK App Store.

How We Work

Strategy Session

We map your London market, competitor landscape, and user personas before writing a line of code.

Technical Scoping

Detailed technical specification with timeline, milestones, and fixed price — signed before work begins.

UI/UX Design

London-market-tested wireframes and interactive prototypes reviewed and approved by your team.

Sprint Development

Two-week sprints with live demos. You always know exactly where your project stands.

Testing & QA

Automated and manual testing across iOS and Android devices commonly used in the UK.

Launch & Growth

App Store submission, launch support, and growth partnerships for sustained UK user acquisition.

Technologies We Use

React NativeSwiftKotlinNode.jsTypeScriptAWSFirebaseFigma

Frequently Asked Questions

Related Services

Web Development SaaS Development Custom Software Development Software Development Ireland Mobile App Development India

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