Mobile App Development App development agency in London, United Kingdom
A good UK app starts with a short, written scope, a prototype tested with real users and a plan for what happens after launch. If your users are also in the Gulf, we build Arabic in properly.
For London and UK start-ups, SMEs and product teams, and for UK businesses with customers or staff in Saudi Arabia, Bahrain and the Gulf.
The quote that grows after you sign.
The common story in app projects is a vague brief, a low quote and a bill that rises with every change. Another is a freelancer who built it, left, and took the only copy of the knowledge. Both are scoping and ownership problems before they are code problems.
We write the scope with you first, show a prototype to your users, and agree in writing that you own the code, the design files and the Apple and Google developer accounts. For teams with a Gulf audience, Arabic right-to-left and Arabic content are designed in from the start and checked by native readers.
What UK teams build with us
- A first app for a new product
- Companion app for existing software
- Internal tools for field teams
- Booking and membership apps
- Arabic versions for Gulf users
What you get
You get a scoped plan, a clickable prototype, a built iOS and Android app with an admin back end, store submission from your accounts and the code in writing.
Discovery & Scope
A written scope: the screens, the features in the first release, what waits for later, and the questions we settled together.
App UX & UI
Screen flows and visual design for phone and tablet, in Arabic right-to-left and English, shown as a clickable prototype before build.
App Build
The app built for iOS and Android: cross-platform with Flutter or React Native where it fits, native where the product needs it.
Admin Panel & API
An admin panel and backend for your team, with the APIs and third-party services your app talks to connected and tested.
Store Submission
App Store and Google Play listings prepared and submitted in your own developer accounts, with screenshots, text and privacy details.
Support & Updates
A support plan after launch for fixes, operating system updates and new features, agreed in writing.
An app idea, or a process that needs an app?
Tell us who uses it and what it must do. We reply with questions and a scoped quote.
How it works
Step 1: Discover
Your users, the one job the app must do well, the features for version one and the integrations it needs.
Step 2: Design
Flows and screens, then a clickable prototype you and your users can try before a line of code is written.
Step 3: Build
Development in short cycles with working builds to test on real phones, and the admin panel alongside.
Step 4: Release
Testing, store submission from your accounts, launch, and the source code and files handed over in writing.
Development work
See all work
High Star Est. website and brand
Website, branding, logo and company profile for High Star Est., an operation and maintenance contractor in Yanbu, Saudi Arabia.

Mobius bilingual brand and website
Bilingual Arabic and English logo, brand identity, company profile and website for Mobius Technology Company Limited, an industrial services company in Saudi Arabia.

Alwa Ali Mubarak Est. website
Website, domain and hosting setup, and company profile for a general contracting and trading establishment in Saudi Arabia.

Orbit Conveyancing website
Website, branding and Google Business Profile setup for Orbit Conveyancing, a property conveyancing firm in Melbourne, Australia.
Project or retainer?
Questions
How much does an app cost in the UK?
It depends on scope: screens, features, platforms, integrations, back end and timeline. A written scope comes first, then a fixed-scope quote. Apple and Google developer fees are paid by you.
How do we avoid the budget growing?
By agreeing the first release in writing, listing what is deferred, and pricing changes before work on them starts. Scope decides cost, so we spend time on it first.
Flutter, React Native or native?
Cross-platform suits most first apps: one team, one code base. Native fits heavy device or performance needs. We explain the trade-off for your product.
Will Apple approve our app?
Apple and Google decide, not us. We build to their guidelines and prepare the listing and review responses, but approval and timing are theirs.
Who owns the source code?
You do. Code, design files and developer accounts are in your name, written into the proposal and handed over at release.
Can you add Arabic for the Gulf later?
Yes, and it is far cheaper to plan for it now. We design layouts that mirror properly and set up the app for right-to-left from the start.
What about GDPR and privacy?
We design for careful data handling and write the privacy information the stores require. Legal compliance for your business should be confirmed with your adviser.
Do you build the back end and admin panel?
Yes. A mobile app usually needs an admin side to manage users and content, and that is included in the scope.
Can you work remotely with our team?
Yes. Sprint reviews and test builds happen remotely, and we can fit around your own developers.
What support follows launch?
A support plan for bug fixes, iOS and Android updates and new features, agreed in writing without lock-in.
Tell us about the app you need.
A short brief is enough: the users, the main features, iOS or Android or both, and the languages. We reply with questions and a fixed-scope quote.
More specialist services
Each one stands alone, and they work together on a single brief.
- DevelopmentAll Development services
- E-commerce Store DesignSalla, Zid, Shopify, WooCommerce / Arabic + English / Launch-ready
- Web Application DevelopmentPortals + dashboards / Arabic RTL / Your code
- API IntegrationSystems connected / No more copy and paste / Monitored
- Website Speed OptimizationCore Web Vitals / Mobile first / Before + after
Cities we work in
Got a brief?
Tell us what you are making and when it has to ship. We will take it from there.