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Custom web app development, live in weeks.

A web app development agency for UK teams, building one workflow as production code at a fixed price.

What we build

Web apps built around one job

Each does a real job for your customers or your team, from sign-in to the finished task.

  • Customer portalsPortalClients see their own orders, files and invoices
  • Booking systemsBookingsSlots, confirmations and reminders, no back and forth
  • Internal toolsOpsThe spreadsheet your team runs on, as an app
  • SaaS productsStripeAccounts, subscriptions and the core feature
  • DashboardsReportsYour data as reports your team reads
  • AI featuresAIA model doing the job, its output checked

How it is built

What goes into a web app

A web app is more than its screens. Every layer is built, tested and handed over in your name.

  1. Screensbecomes Next.js and React
  2. Business rulesbecomes Tested TypeScript
  3. Users and rolesbecomes Sign-in and permissions
  4. Paymentsbecomes Stripe, in your account
  5. Filesbecomes Storage in your name
  6. Databecomes Postgres, backed up
  7. Hostingbecomes Your domain and account

Pricing

Fixed-price web app development

Two sprints for the first release of your web app, priced before the build starts.

Limited offer25% off our next two MVPs

Preferred

MVP

2 week development sprint

Usually£10,00025% off

Now£7,500+ VAT

What is included

  • A fully built MVP, ready to take to market
  • 1 week of development by our team
  • 1 week of iteration based on your feedback
  • 1 week of handover after launch: bug fixes and a smooth rollout
Book a discovery call

Extended MVP

3 week development sprint

Usually£20,00025% off

Now£15,000+ VAT

What is included

  • A fully built MVP, ready to take to market
  • 2 weeks of development by our team
  • 1 week of iteration based on your feedback
  • 1 week of handover after launch: bug fixes and a smooth rollout
Book a discovery call

Process

From brief to live web app

A discovery call, a 2 week development sprint with a demo every Friday, then a week of support.

  1. Before

    Booked around you

    MonInitial call

    WedDiscovery call

    Thu to FriScope and price agreed

  2. Week 1

    Development

    Mon to ThuDevelopment begins

    FriDemo

  3. Week 2

    Iteration

    Mon to ThuIteration and refinement

    FriDemo + launch

  4. Week 3

    Live

    MonFull handover

    Tue to Fri1 week of support

An example schedule for the MVP. The Extended MVP adds a second week of development.

Who it is for

Is a sprint right for your web app?

It suits a clearly scoped first release. If you need a team for years, we will say so on the call.

Your fit

3/5 ticked

Close. The call will settle the rest.

Our work

Web apps we have built and launched

Dashboards, AI tools and team workspaces, each taken from first sketch to a live domain.

See all case studies
The Viewlio home page: the headline Know exactly where your viewers leave. And what to change, beside a sample retention report with a drop-off at 2:41 and a suggested fix

AI analytics for YouTube creators

Viewlio case study

Viewlio reads a YouTube video's retention curve against the video itself and explains why viewers left.

  • Next.js
  • Supabase
  • OpenAI
  • ffmpeg
The Pretty Metrics home page: rows of revenue chart cards for MRR, new customers and total revenue on colourful still and animated backdrops

Shareable revenue charts

Pretty Metrics case study

Pretty Metrics turns a founder's revenue from Stripe and six other providers into polished share cards and videos.

  • Next.js
  • Canvas
  • WebCodecs
  • Stripe

Why Scryptic

Who should build your web app?

Agency-grade code at a freelancer's pace, with the price fixed before the build.

Book a discovery call
How Scryptic compares with an in-house hire, an agency, a freelancer and AI-only tools
In-house hireAgencyFreelancerAI-only tools
SpeedYesNoNoYesYes
QualityYesYesYesNoNo
FlexibilityYesNoNoYesNo
Yours to ownYesYesNoYesYes
Cost vs valueYesNoNoYesYes

Guides

Plan your web app before the call

Guides on scoping a web app and choosing who builds it, plus two free tools.

All guides

Web vs mobile

Web app or mobile app first?

Build the web app first unless the phone is the product. A one-table decision guide to web, PWA, React Native or native for your first release.

4 min read

  • Build or No-Code Quiz

    Seven questions to find out whether no-code will do for your idea or it needs real code.

  • MVP Cost Calculator

    Eight quick questions and a ballpark price and timeline for your MVP, in about a minute.

FAQ

Frequently asked questions

Cost, timeline, phones, websites and who owns the result.

What is web app development?

Web app development is designing, building and running software people use in a browser: the screens, the business rules behind them, the database and the hosting. A website mostly presents information, while a web app lets someone get a job done, such as booking a slot or approving an invoice. What web application development involves, from architecture to launch.

How much does web app development cost in the UK?

With Scryptic it is a fixed price, plus VAT. The MVP package is £10,000 for a 2 week development sprint, and The Extended MVP package is £20,000 for a 3 week development sprint. For a limited time there is 25% off our next two MVPs, bringing them to £7,500 and £15,000. The packages are named for a first release, and a web app is priced the same way: the scope and price are agreed after the discovery call, before any build starts.

How long does it take to build a web app?

Two or three weeks for a first release scoped to one workflow, then a week of handover and support. Larger apps are built in stages: the first sprint ships the workflow that matters most, and later sprints add the next ones once people are using it.

What kinds of web app do you build?

Apps that do one job well for your customers or your team: customer portals, booking and scheduling systems, internal tools that replace a shared spreadsheet, SaaS products with subscriptions, dashboards and reporting, and products with AI at their core. If it runs in a browser and has users who sign in, it is likely a fit.

Do you build websites as well as web apps?

We build the app rather than the marketing site. Most products need both, and they are separate pieces of work: a marketing site is usually best kept on a builder such as Webflow or Framer, with the app on its own subdomain, such as app.yourcompany.com, and links between the two. How to build an app next to a Framer site.

Will the web app work on phones?

Yes. Every screen is built to work on a phone, a tablet and a laptop, and tested on a phone before launch. One web app reaches every device from a single link, so for most first releases a separate app store app can wait until the product has proved itself. Web app or mobile app first? Find your situation.

Can you take over an existing web app?

Yes. We review the code or the prototype during discovery and build on the parts worth keeping. Apps made with no-code and AI builders such as Bubble, Lovable or Replit can be moved to production code, with your data and users brought across. How our no-code app migration works.

Who builds the web app?

Max, the founder, a full-stack developer with five years of experience building software for enterprise clients and startups. You work with the same person from the discovery call to launch day, with a video demo every Friday.

Who owns the web app once it is built?

You do. The code lives in your repository, and the hosting, database, storage and payment accounts are in your name and handed over at launch. Any developer you hire later can run and deploy it without us.

Talk through your web app

Walk us through the workflow. You will leave knowing what the first release covers and what it costs.

Book a discovery call

or email maxwinterleinweber@gmail.com