When most people think of app development, they picture Silicon Valley startups with millions in funding. But custom app development isn't just for tech giants — it's increasingly accessible and valuable for UK small businesses too.
I'm Katie, a freelance app developer based in Windsor, Berkshire. I've built custom web apps for businesses of all sizes — from wedding planning platforms to video storytelling apps to competition websites. Here's everything you need to know about getting a custom app built for your business.
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What is a Custom Web App?
A custom web app is software built specifically for your business needs, accessible through a web browser. Unlike a standard website, an app has:
- **User accounts and authentication** — People can sign up, log in, and have their own dashboard
- **Dynamic data** — Content that changes based on who's using it
- **Interactive features** — Users can create, edit, delete, and manage things
- **Backend logic** — Processing that happens behind the scenes
Think of it as the difference between a brochure (website) and a tool (app).
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Why Would a Small Business Need a Custom App?
Automate Manual Processes
If you're doing something manually that could be automated — tracking orders, managing bookings, processing applications — an app can handle it.
Create a New Revenue Stream
A custom app can become a product in itself. Subscription platforms, directories, marketplaces — these are all apps that generate recurring revenue.
Stand Out from Competitors
While your competitors are using generic tools, a custom app gives your customers a unique, branded experience.
Scale Without Hiring
An app can serve 100 customers just as easily as 10, without you needing to hire more staff.
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Real Examples of Apps I've Built
Ever After List — Wedding Planning Platform
A full-featured SaaS connecting couples with wedding suppliers. Features include supplier directory with search and filters, venue finder, guest list management, budget tracking, and an admin dashboard.
Live at: everafterlist.com
MYOS — Video Storytelling App
A platform where users record, revisit, and share personal stories through video. Features include user authentication, video upload and streaming, an explore feed, and profile pages.
Live at: mymyos.com
Competition Platform
A complete raffle and competition website with ticket purchasing, Stripe payments, countdown timers, winner announcements, and a full admin back-office.
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How Much Does App Development Cost in the UK?
Custom app costs vary hugely depending on complexity:
| App Type | Timeline | Starting From |
|---|---|---|
| Simple web app | 4–6 weeks | £3,000 |
| Directory or marketplace | 6–10 weeks | £5,000 |
| Platform with payments | 8–12 weeks | £7,000 |
| Complex app with AI/integrations | 10–16 weeks | £10,000+ |
These are starting points — every project is different. The best way to get an accurate quote is a free discovery call where we map out your specific needs.
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My App Development Process
1. Discovery Call
We explore your idea, your target users, and what the app needs to do. I ask the right questions so nothing gets missed.
2. Scope & Quote
I put together a clear project scope, timeline, and fixed price. No vague estimates — you know exactly what you're getting.
3. Design & Build
I design the UI and build your app using modern, scalable technology (React, TypeScript, cloud backend). You get regular updates throughout.
4. Launch & Support
We launch your app, gather feedback, and I provide ongoing support as your product evolves.
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Freelance App Developer vs Agency
For small business app development, a freelance developer often makes more sense:
- **Lower cost** — No agency overheads
- **Direct communication** — You talk to the person building it
- **Faster turnaround** — Less process, more building
- **Flexible** — Easy to add features and iterate
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Ready to Build Your App?
If you have an idea for a custom app — whether it's a booking system, a marketplace, a client portal, or something entirely new — I'd love to hear about it.
Book a free discovery call and let's explore what's possible. Based in Windsor, Berkshire, working with businesses across the UK.
