UK Software Development Cost Calculator
Answer five questions about the application you need. You get a banded price range in pounds, on the spot. It comes from the same model our written quotations do, and it starts at our published from-price of £8,500. Nothing you type is sent to us or stored.
Five Questions · Instant Ranges · No Sign-Up
Five Answers, One Price Range
The questions are banded because the model behind your quotation is banded. Every answer moves the figure the moment you pick it.
Your Price Range
The one-off application fee, as an indicative range
£8,500 - £9,500
Generated from the model our quotations come from. The exact figure is set on a written quotation.
Covers designing, building, testing and taking the application live - delivered in a Google Cloud project your company owns.
The bottom of every range is £8,500 - our published from-price. If what you need sits under it, Valacia, our one page website product, is free to start and may be the better answer.
A fixed figure comes from the Scoping Sprint: £1,950, credited in full against the application.
Your answers stay in your browser.
Running It
from £199 / month
That is the Managed Service: our fee for operating the application in the Google Cloud project your company owns. The exact fee is set on your quotation. If you run it yourselves, you already own the project it runs in.
Your Google Cloud infrastructure is billed to you by Google directly, at Google's own rates.
Every range on this page is an estimate.
How The Ranges Are Generated
The weightings are the ones we quote from.
One Model, Two Uses
The calculator and our written quotations come from the same internal model. Each answer moves the range by an amount we have already committed to. So the band on this page is the band we would be working from on a call. You just see it first.
Why The Range Is Wide
A narrow range on five answers would be a guess dressed up as a quotation. The band opens at fifteen per cent either side of the modelled figure and steps out to thirty as the application gets bigger. Detail decides the rest. The Scoping Sprint is where that detail gets pinned down.
The Premium We Add For Risk
A fixed price means we carry the overrun, so the model adds a premium for it. The harder an application is to predict, the bigger that premium: enough workflows, enough integrations or any data migration at all move it to the higher band. The calculator leans high. It cannot know how well we already understand your business, so it does not assume the best case.
A Real Floor
The bottom of every range is £8,500, our published from-price for a custom SaaS application, and most quotations land between £15,000 and £40,000. The arithmetic can land under that. When it does you see the floor and not the sum, because £8,500 is the least we will take on work of this kind. Both ends of the band round to the nearest five hundred pounds, and the low end rounds before it meets the floor, so the floor lands on £8,500 exactly. If what you need sits below it, Valacia, our one page website product, is free to start and is probably the better answer.
Where The Calculator Stops
Past a certain size the calculator stops giving a number at all, and says so on screen instead. An application that big is decided by detail a form cannot ask about, so a headline figure would mislead you. We would rather have the conversation.
We Sell A Price, Not A Rate
The figure that matters is the one on your quotation: fixed, in writing, and set before any work begins. You buy a scoped application. What it takes us to deliver is our side of the bargain, which is why this page shows you pounds and no rate to multiply out.
What Each Answer Moves
- What The Application Is
- The biggest mover on the form. An internal tool for your own staff, a portal your customers sign into and a full SaaS product with billing are three different amounts of work, and the gaps between them are wider than anything else here can open.
- Core Screens Or Workflows
- Count the distinct things somebody can do or see. Each one is a screen to design, build and test, which is why this is the answer most often under-counted.
- Accounts And Roles
- A single sign-in is cheap. Several roles that each see different data is not, because every one of those rules has to be enforced on the server as well as on the screen.
- Integrations With Other Systems
- Other people's software is the part we control least. Each one adds work we can size and risk we cannot, which is why enough of them also move you into the higher premium band.
- Data Migration From An Existing System
- A simple import adds a known amount of work. A structured migration is left out of the range entirely, because bands cannot price it - the calculator flags that, and the Scoping Sprint prices it.
What The Range Covers
The calculator prices the application itself.
In The One-Off Fee
- Designing the application, building it and testing it.
- Setting up the environment inside the Google Cloud project your company owns.
- Taking it live.
Priced Separately
- The Scoping Sprint, £1,950, credited in full against the application.
- The Managed Service, from £199 a month, if we operate it for you.
- Google's bill for the infrastructure, and any licences you buy from other companies.
All prices are quoted in pounds sterling and are the total fees payable to us.
What It Costs To Run
The range on this page is a one-off fee. What follows it is monthly, and it goes to more than one place.
Google Bills You Directly
Your application runs in a Google Cloud project registered to your company, on your own Google billing account. Google charges you for the infrastructure at its own rates. That bill never passes through us. We do not mark it up and we will not guess at it here, because what it comes to depends on how much the application gets used.
If We Operate It For You
The Managed Service is from £199 a month: hosting, SSL, monitoring, managed backups, security patching, dependency updates and unlimited minor updates, for an application we operate in your own Google Cloud project under access you grant. Unlimited in number, worked one at a time, and each one a change to something the application already does. The exact fee is set on your quotation. Run it yourselves and this bill is zero, with any later work quoted per request.
Licences From Other Companies
Some applications need a service somebody else sells - a payment provider, a messaging service, a data feed. Those companies bill you, on their own terms, for as long as you use them. We can tell you which ones you need.
Only the Managed Service is a price we set. The other two follow the application: use it more and Google charges more, add a service and its owner invoices you. That is why this page prices ours and will not guess at theirs.
What This Cannot Price
Each of these changes the figure, and none of them can be sized from banded answers. They are scoping-call items, priced on the quotation.
A Structured Data Migration
Moving structured records out of an existing system safely is real engineering, and pricing it without seeing the system would be a guess. It is scoped in the Scoping Sprint and priced on the quotation.
Compliance Regimes
Medical, financial and other regulated domains change what must be built, tested and evidenced. A banded range cannot carry that, so a regulated application always starts with the Scoping Sprint.
Native Mobile Apps
A native iOS or Android app that extends your application is quoted per project alongside the rest of the system, never priced from bands. What that involves is set out on the mobile app development page.
Third-Party Licence Fees
Payment providers, data services, software you already license - those are somebody else's price list, and we will not guess at it. What an application needs is named in the specification, and you buy it direct.
Software Cost Questions
How Much Does Custom Software Development Cost In The UK?
From £8,500, with most quotations landing between £15,000 and £40,000. That is the custom SaaS application, built to order. The calculator turns five banded answers into a range from the same model we quote from, and the exact figure is set on a written quotation before any work begins.
Why Do You Show A Range Rather Than A Price?
Because a single figure from five banded answers would be false precision. A range is what a calculator can know. The fixed figure comes from the Scoping Sprint - £1,950, credited in full against the application - which produces a written quotation you can hold us to.
What Is A Custom SaaS Application?
Software built for one business and delivered through the browser as a service: an internal tool, a customer-facing portal, or a full product with subscriptions and billing. We design and build ours in house. Each one runs in a dedicated, isolated Google Cloud project your company owns from day one.
What Does The Monthly Figure Cover?
It covers us operating the application in your own Google Cloud project. From £199 a month, and the exact fee is set on your quotation. Google's bill for the infrastructure is separate. It goes straight to you.
Is Anything I Type Sent To You?
No. It runs entirely in your browser. Your answers stay on your device and go when the tab does, and there is deliberately no link you could share with them in it.
Why Do Some Answers Flag The Scoping Sprint?
Because past a certain size, a banded range stops being honest on its own. Nine or more workflows, three or more integrations or a structured migration are Scoping Sprint territory. The range still shows what it can stand behind. The Sprint turns it into one fixed figure.
Can The Range Be Wrong?
Yes, in both directions. Five banded answers cannot see a workflow that turns out to be three workflows, or an integration whose documentation is worse than anybody expected. That is what the Scoping Sprint is for: it replaces the range with one fixed figure we are bound to. If the Sprint tells us the range was low, you hear it from us before you commit to anything.
What Does The Scoping Sprint Give Me?
A written specification and a fixed-price quotation. Both are yours to keep. The fee is £1,950, credited in full against the application if you go ahead within six months. It turns a range into a figure you can hold us to.
Why Do You Not Publish The Weight Behind Each Answer?
You can see which direction each answer pushes the figure. What you will not see is a price per answer. Software does not add up like that. An extra role or an extra integration costs what it costs in the context of everything around it, so publishing one would turn a scoped application into a feature menu.
Why Do You Not Ask For My Email?
Because our prices are already published, so charging you an email address for a number you can read on the pricing page would be a trick. The calculator is open and instant. Answer the five questions as many times as you like.
Turn Your Range Into A Fixed Quote
The Scoping Sprint is £1,950, credited in full against the application. It produces one written quotation with one fixed figure on it. Nothing is chargeable until you agree that figure. Every price we publish is the total payable to us.