Why most app development agencies let founders down
The typical app development agency model is broken.
Bloated teams
Account managers, project managers, QA leads, design teams — you are funding an org chart, not your app. The person who understands your product is three layers from the person writing the code.
Open-ended billing
Hourly rates, change requests, scope creep invoices. The agency has no incentive to finish your app quickly — every extra week is more revenue for them.
Offshore handoffs
The pitch comes from London, the work gets done overseas. Communication gaps, timezone friction, and code quality you cannot verify until it is too late.
Wall & Fifth is an app development agency built differently: fixed pricing, direct access to the builder, and production-grade apps delivered in 8 weeks.
What this app development agency builds
Web apps. Mobile apps.
Designed, built, and launched.
Every app we build is production-grade code on modern foundations. Not a prototype. Not a wireframe. A real, working app you can put in front of real users.
Web app development
Dashboards, portals, booking platforms, admin panels, internal tools, member areas. Built in Next.js, React, TypeScript, and PostgreSQL. Responsive, fast, no app store needed.
Mobile app development
Native iOS and Android apps from a single React Native codebase. Push notifications, camera, GPS, offline — all supported. App Store and Google Play submission included.
App infrastructure
Authentication, database design, API architecture, CI/CD pipelines, SSL, monitoring, CDN. Every app we build is production-ready from launch.
Payments & integrations
Stripe billing, email systems, third-party API connections, webhooks. If your app needs to connect to something or process payments, it is built in from day one.
Why choose this app development agency
Everything an agency should be.
Nothing it usually is.
Fixed-price app development
You know what your app costs before you commit. App Build from £30,000. Extensive App Build from £45,000. No hourly billing, no change request invoices, no surprises.
Direct access to the builder
No account managers relaying messages. No project managers scheduling updates. You talk to the person designing and building your app. Every conversation moves the product forward.
8-week delivery
Scoping and design in weeks 1–2. Full-stack development in weeks 3–6. Testing and launch in weeks 7–8. Your app is live in two months, not six.
Code you own completely
You own your data and the custom deliverables agreed in your contract. Reusable components and third-party software retain their licences. The proposal specifies any retained IP, licensing, hosting and exit terms before work starts.
Founder-led product and development
William leads product, design and client delivery, working with a small team of freelance full-stack developers. Scope, responsibilities and delivery milestones are agreed up front.
App development agency pricing
Fixed price. 8 weeks. No agency maths.
App Build
£30,000
8 weeks · Fixed price
One core app — web or mobile. Scoping, design, full-stack development, deployment, and complete code handover. 8 weeks.
Best for: A focused app that needs to work, look great, and launch fast.
Extensive App Build
From £45,000
8 weeks · Fixed price
Complex app with multiple user types, admin panel, payments, third-party integrations, and both platforms if needed.
Best for: Apps with commercial depth — admin control, multiple roles, integrations.
App development agency FAQ
Questions founders ask before hiring an app development agency.
Ready to hire an app development agency that skips the nonsense?
Book a free scoping call. We'll talk through your app idea, recommend the right platform, and give you a fixed price — no commitment, no pitch deck.