Flutter App Development · London

Flutter App Development Company in London, built to ship.

One Flutter codebase. Two app stores. Our team builds cross-platform apps for iOS and Android that feel native on both, and we wire them to a backend that can actually take the load. No throwaway prototypes, real products you ship and grow. London (GMT, or BST in summer) sits 5.5 hours behind India (IST), which is the most convenient overlap of any major Western market because your morning is our afternoon and the two working days share a large chunk of live, productive hours.

Rated 4.9 stars across 24+ client projectsYou own 100% of the code and IP. NDA on request.

London market

London is Europe's leading technology hub and ranked third globally in Startup Genome's 2025 ecosystem report, with UK tech raising 12 billion USD in the first nine months of 2025. Its fintech sector is the strongest in Europe and second only to the United States, which keeps demand high for custom software, payment platforms, dashboards and mobile apps. Geminate Solutions acts as the remote product and engineering arm for London founders and businesses that need to move quickly without overstretching local hiring budgets.

Local signal: The UK tech ecosystem recorded 12 billion USD in funding in the first nine months of 2025, with London's fintech sector confirmed as the number one fintech hub in Europe and second globally.

Fintech and paymentsEnterprise software and SaaSMedia and entertainmentHealthtech and life sciencesE-commerce and retail

4.9★

Client rating across 24+ projects

250K+

daily active users on apps we built

10M+

requests per minute handled

50+

products shipped worldwide

What we build

Flutter App Development Company for London teams, end to end

Cross-platform Flutter apps

A single codebase covers iOS and Android. Native-feeling performance, and you ship to both stores at once.

Backend and APIs

We hook the app up to Firebase, Supabase, or a custom API, with auth and payments already working when it lands.

App Store and Play launch

We do not stop at the build. Our team handles review, the release itself, and the inevitable post-launch fixes.

UI/UX that converts

Interfaces built for the people who actually use them. Fast, clean, on-brand, not a polished demo that falls apart in production.

Maintenance and scaling

After launch we stay on. New features, performance work, and updates handled on a retainer.

Your time zone

London (GMT, or BST in summer) sits 5.5 hours behind India (IST), which is the most convenient overlap of any major Western market because your morning is our afternoon and the two working days share a large chunk of live, productive hours.

Your IP, your code

You retain full IP ownership, we sign an NDA up front, and our English-fluent team is set up to work to UK contract and GDPR expectations so London clients can offshore with confidence.

Priced in GBP

Transparent, milestone-based, scoped on a free call. No hidden costs and no lock-in.

Compliance in United Kingdom

How does Flutter App Development Company stay compliant with UK GDPR in London?

London companies build under the UK GDPR and the Data Protection Act 2018, overseen by the Information Commissioner's Office (ICO). We design every flutter app development engagement to respect those rules from day one, not as a checklist bolted on at the end. Moving personal data from the UK to India relies on safeguards such as the International Data Transfer Agreement, which we put in place so your processing stays lawful end to end.

Who regulates you

the Information Commissioner's Office (ICO). the FCA layers extra operational-resilience and outsourcing expectations on financial services, which we design around for regulated clients.

Where your data lives

You pick the hosting region. When residency rules or a United Kingdom contract require it, we deploy inside your jurisdiction and you hold the cloud accounts.

What you own

100% of the source code and IP, transferred under contract, with an NDA and a data processing agreement signed before anything is shared.

Proof we can do this at scale: the products we have shipped run at 250K+ daily active users and have handled 10M+ requests per minute, across 50+ products rated 4.9 stars over 24+ client projects. Security and data handling are part of how we build, not an afterthought.

FAQ

Flutter App Development Company in London, answered

How much of the working day do London and India actually share?

London is 5.5 hours behind our India team, which gives one of the best overlaps we work with. Your full morning is our afternoon, so live calls, code reviews and approvals happen in real time without anyone working unsociable hours.

Is offshore development with Geminate Solutions more cost-effective than a London agency?

London carries some of the highest developer rates in Europe, so an offshore product partner usually reduces your build cost substantially while keeping delivery quality high. We scope the exact cost on a call once we understand your product, rather than listing a headline rate.

How do you handle UK GDPR and data protection for London clients?

London businesses fall under the UK GDPR and the Data Protection Act 2018, overseen by the Information Commissioner's Office (ICO). Moving personal data from the UK to India relies on safeguards such as the International Data Transfer Agreement, which we put in place so your processing stays lawful end to end. Before any data is shared we sign an NDA and a data processing agreement, and the FCA layers extra operational-resilience and outsourcing expectations on financial services, which we design around for regulated clients.

Where will our data and code be hosted if we build with you from London?

You choose the region. We default to a cloud setup that satisfies UK GDPR obligations, and when residency rules or a United Kingdom contract require it, we host inside your jurisdiction. You keep full ownership of the source code, the data, and the infrastructure accounts at all times.

How much does Flutter App Development Company cost in London?

Every flutter app development project is scoped on a free call rather than sold as a fixed package, and most engagements start with a paid pilot sprint so you see the work before you commit. You get a clear number in GBP before anything starts.

Do we own the code?

Yes, completely. The code, the project, and the content are handed to you. You hold the keys, not us. We sign an NDA before you share anything.

How long does it take?

Most builds go live in two to four weeks. Larger products with a custom backend or migration take longer, and you get a firm timeline before any work begins.

Start in London

Get a free project estimate

Tell us what you want to build. A senior engineer sends a clear scope and estimate within 24 hours. No pitch, no obligation.

Rated 4.9 across 24+ client projectsReply within 24 hours

Prefer to talk? yash@geminatesolutions.com