London-based · Web applications for UK businesses
Web Application Development Company in London
We’re a London web application development company. We design and build the browser-based software businesses run on: customer portals, SaaS products, booking systems and dashboards, delivered as custom web application development services for firms across the UK.
Web Applications We’ve Built
Live web apps, used every day
Each of these runs in the browser with its own admin dashboard, so our clients manage bookings, listings, members and orders without calling a developer.
More platforms we’ve built
Every platform includes an admin dashboard
- ICFI GlobalLearning platformICFI Global case study: An online academy with certifications and public certificate verification.
- OVEC ExamsExam platformOVEC Exams case study: Mock exams, online tests, orders and payments for an examinations body.
- Makkah PropertiesProperty platformMakkah Properties case study: Property search, filterable listings, calculators and a four-step valuation request.
- Awake Early Years ConsultancyMembership platformAwake Early Years Consultancy case study: Membership plans and a private members’ area for an early years consultancy.
- Fire Fit PharmaEcommerce platformFire Fit Pharma case study: A searchable catalogue with cart, batch verification requests and wholesale enquiries.
- BHB Airport TransfersBooking systemBHB Airport Transfers case study: Transfer and chauffeur bookings, with a booking route on every screen.
- Ashville Hot ChickenOrdering systemAshville Hot Chicken case study: A menu builder that sends each order straight to the kitchen.
Website or web app?
Do you need a website or a web application?
It’s the first question worth settling, because it changes the budget, the timeline and the team you need. Here’s the simple test.
A website
Tells people about you.
- Mostly the same for every visitor
- Success means enquiries and calls
- Content changes now and then
- Examples: a company site, a portfolio, a brochure
A web application
Lets people get something done.
- Different for every user, with logins and their own data
- Success means tasks completed: booked, paid, learned, approved
- Data changes every minute
- Examples: a client portal, a booking system, a SaaS product
Most of our projects are both: a public website at the front and a web application behind it, sharing one design and one login. If you only need the website, our web design service is the better fit.
Technology
How we build web applications
Proven, widely used technology, so your web application is fast today and easy for any good developer to work on tomorrow, including someone who isn’t us.
Front end
React and Next.js, rendered on the server so screens load quickly, even on older phones and laptops.
Back end
Node.js, Python or Go, chosen to suit the job rather than habit.
Database
PostgreSQL, with a data model designed before the first screen is built.
Integrations
Payments, CRMs, accounting and email tools connected through documented APIs.
Security
Role-based access, encrypted data and secure sign-in, built in from the first release.
Ownership
Source code, database and documentation handed over, with no lock-in to us.
Cost and timeline
What a web application costs, and why
Web application development companies that quote before understanding your users are guessing. Four things drive the price more than anything else.
How we price
After a discovery call, you get a fixed proposal for the first release: the scope, the timeline and the cost, in writing, before development starts.
Get a proposal- 01
User types
Every extra role, such as customer, staff, manager or partner, adds screens and permissions to design and test.
- 02
First-release features
The biggest lever on cost. A focused first release costs less and reaches your users sooner.
- 03
Integrations
Each connection to payments, a CRM or an older system adds build and testing time.
- 04
Data migration
Moving years of records from spreadsheets or an old system needs mapping, cleaning and checking.
Our advice: start with a first release
Build the smallest version that does the most important job well, put it in front of real users, then add features based on how they actually use it. It costs less up front and avoids building things nobody needs.
Why Exibify
What you get from our web application development team
What We Build
Web applications we develop
Browser-based software for your customers, your members and your own team.
Customer portals
Secure logins where clients see their orders, documents, bookings or progress.
SaaS products
Subscription software with accounts, billing and the admin tools to run it.
Booking and scheduling systems
Live availability, payments and confirmations, managed from one dashboard.
Learning and membership platforms
Courses, tests, certificates and members’ areas, as we built for ICFI and OVEC.
Listings and marketplaces
Searchable listings with filters and enquiry or booking flows, like Makkah Properties.
Internal tools and dashboards
Replace spreadsheets with a web app your team actually wants to use.
How We Work
How we develop a web application
Web application development in London or anywhere in the UK follows the same path with us: a first release in front of real users early, then improvements based on how people actually use it.
Start Your ProjectAlongside Your Web App
Everything around the application
A web application rarely lives on its own. We can build the parts around it too.
- Custom Software
- Mobile Apps
- SaaS Web Design
- B2B Web Design
- SEO Services
- User Accounts & Logins
- Payment Integration
- Admin Dashboards
- API Development
- Data Migration
- Cloud Hosting
- Ongoing Support
Testimonials
What our clients say
I needed a professional website and some marketing help, and they delivered on both. Very satisfied with the result.
Developed a beautiful website for my restaurant with an easy-to-use online booking system. Incredible work!
Their marketing strategies and website creation brought in so many new clients. Truly elevated our brand.
FAQ
Frequently asked questions
Something else on your mind? Email info@exibify.com and we'll get back to you.
01What is a web application?
Software that runs in a web browser instead of being installed. People log in, enter information and get things done, such as booking, buying, learning or managing work. Unlike a website, it changes depending on who is using it.
02How much does web application development cost in the UK?
It depends on the number of user types, the features in the first release and the integrations it needs. After a discovery call we send a fixed proposal for that first release, so you know the cost before development starts.
03How long does it take to build a web application?
It depends on the scope. Starting with a focused first release gets a working app to your users sooner. We set out the timeline in the proposal and show you working software throughout the build.
04Should we build a web app or a mobile app first?
For most businesses, a web app first. It works on any device with a browser, needs no app store approval and is quicker to change. If you need a native app later, it can share the same accounts and data, as ParkingSpinner’s site and app do.
05What should we look for in a web application development firm?
Live web apps you can click through, not just websites. A clear proposal for the first release. An admin dashboard your team will understand. And full ownership of the code at the end. Ask any firm to show you all four.
06Are you a web application development company for the whole UK, or just London?
The whole UK. Our team is in London, and we work with businesses across the country, as well as clients in the US, mostly through video calls and shared previews.
07Can you take over or rebuild an existing web application?
Often, yes. We start with a technical review of the code, hosting and data, then recommend whether to improve what you have or rebuild it in stages without interrupting your users.
08Who owns the web application when it’s finished?
You do. At handover you receive the source code, database and documentation, and we can set up hosting and third-party accounts in your organisation’s name.
Let's work together!
Tell us what your web application needs to do and who will use it. We’ll reply within one business day with next steps.
Book a call withthe Exibify teamBook a Call