UK Fintech Development

Fintech Apps Built for the UK Market

We build FCA-aware, PSD2-compliant fintech applications for UK businesses — from digital banking and payment apps to investment platforms and open banking solutions.

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30+

UK Fintech Projects

FCA

Aware

PSD2

Compliant

Fintech Services

Our UK Fintech App Development Services

Specialised fintech development for the UK regulatory environment.

Digital Banking Apps

Mobile and web banking applications with account management, payments, and personalised financial insights.

Payment Solutions

PSD2-compliant payment apps, open banking integrations, and multi-currency payment processing for UK businesses.

Investment Platforms

Retail investment apps, robo-advisors, and portfolio management platforms built for UK regulatory compliance.

RegTech Solutions

Regulatory technology solutions for KYC, AML, transaction monitoring, and FCA reporting requirements.

Lending Platforms

Digital lending applications with credit scoring, loan origination, and FCA-compliant consumer credit features.

Open Banking Integration

Open Banking API integrations using the UK Open Banking Standard for account aggregation and payment initiation.

Development Process

How We Build UK Fintech Apps

A compliance-first development process for the UK fintech market.

Regulatory Assessment

We assess FCA, PSD2, and other applicable regulatory requirements to ensure your app is compliant from day one.

Security Architecture

We design bank-grade security — encryption, fraud detection, and access controls — appropriate for financial applications.

Agile Development

We build in sprints with regular compliance reviews, ensuring features meet both user needs and regulatory requirements.

Testing & Launch

Rigorous security testing, penetration testing, and regulatory review before launch to the UK market.

FAQ

Frequently Asked Questions

Do you understand UK fintech regulations?

Yes. Our team is familiar with FCA requirements, PSD2, Open Banking standards, and UK consumer credit regulations.

Can you help us get FCA authorisation?

We can help prepare your technology for FCA authorisation, including documentation, security controls, and compliance frameworks.

Do you integrate with UK Open Banking APIs?

Yes. We integrate with all major UK Open Banking providers and the Open Banking Implementation Entity (OBIE) standards.

Can you build for both UK and EU markets?

Yes. We build fintech apps that comply with both UK and EU regulations, supporting your expansion across both markets.

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Related Services

Why Arnnima Solution

Why Businesses Choose Us for Fintech App Development UK

We combine deep technical expertise, agile delivery, and a genuine commitment to your success — making us the partner of choice for Fintech App Development UK across India and globally.

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FCA-aware development with compliance-by-design built into every fintech feature
Open Banking API integration (PSD2) for account aggregation and payment initiation
Bank-grade security with end-to-end encryption and multi-factor authentication
Real-time payment processing with Faster Payments, CHAPS, and BACS integration
KYC/AML workflow automation reducing onboarding time while maintaining compliance
UK-based fintech expertise with deep knowledge of FSCS, FOS, and regulatory landscape

Technologies

Our Technology Stack

We use industry-leading tools and frameworks to deliver robust, scalable Fintech App Development UK solutions.

Payments

Stripe GoCardless Modulr Railsr

Open Banking

Plaid TrueLayer Yapily Token.io

Backend

Node.js Python Java Spring AWS

Industries

Industries We Serve with Fintech App Development UK

Our Fintech App Development UK solutions are trusted by businesses across diverse sectors.

Challenger Banking

Payments & Wallets

InsurTech

WealthTech

RegTech

Lending & Credit

Client Stories

What Our Clients Say About Our Fintech App Development UK

Real results from real businesses who trusted Arnnima Solution with their Fintech App Development UK needs.

"Arnnima delivered our Open Banking aggregation feature in 10 weeks. FCA compliance documentation was thorough and the integration quality has been flawless since day one."

Oliver BanksCTO, FinanceApp UK

"Their understanding of UK fintech regulation saved us three months of rework. Building compliance into the architecture from the start was exactly the right approach."

Charlotte ReedCEO, PayStart UK

"KYC onboarding time reduced from 48 hours to 4 minutes with the automation Arnnima built. Our conversion from signup to active user improved by 58%."

Arjun ShahProduct Director, Neobank UK