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Software that runs your business.

We design and build custom software, from SaaS products to internal tools. One team plans it, builds it and keeps it running after launch.

Start a projectSoftware quoted per project
  • Fewer manual tasks
  • One source of truth
  • Built to scale

Growing businesses often run on spreadsheets, copied data and tools that never quite talk to each other. We map how your work flows, build software around it, and use AI to test faster with a person reviewing each release.

What we build.

Six areas of work, often combined into one project, all planned and delivered by the same team.

SaaS products

Subscription software, built to grow.

We take your SaaS idea from first screens to a working product with accounts, billing and an admin area. You get a codebase built to grow with your customers.

  • User accounts and roles
  • Subscription billing built in
  • Admin and support tools
  • Product analytics from day one
Explore SaaS products

Dashboards

Your numbers, in one place.

We pull data from your shop, CRM, ad accounts and spreadsheets into one clear dashboard. You see what matters without exporting anything.

  • Live data from your tools
  • Clear charts and filters
  • Scheduled email reports
  • AI-written weekly summaries
Explore dashboards

Internal tools

Replace the spreadsheet holding everything together.

We build custom tools for quoting, bookings, stock, jobs or approvals, shaped around how your team already works. That means less copying between systems and fewer mistakes.

  • Quotes, jobs and bookings
  • Custom forms and workflows
  • Permissions for each role
  • Audit trail of changes
Explore internal tools

APIs and integrations

Connect the tools you already pay for.

We connect your systems through their APIs so orders, contacts and stock move between them on their own. Where it fits, we use Zapier, Make or n8n instead of custom code.

  • Custom REST APIs
  • Webhooks and data syncing
  • CRM and accounting links
  • Zapier, Make and n8n
Explore APIs and integrations

Payments with Stripe

Take payments the way customers expect.

We set up Stripe for one-off payments, subscriptions, invoices and customer portals. Webhooks keep your records in step with every payment, refund and renewal.

  • Stripe Checkout and Billing
  • Subscriptions and invoices
  • Customer self-service portal
  • Webhooks for every event
Explore payments with Stripe

Support and maintenance

Kept secure, updated and running.

After launch we monitor your software, apply updates and fix issues as they come up. New features are planned with you and released in small, tested steps.

  • Uptime and error monitoring
  • Security and dependency updates
  • Backups and recovery checks
  • Planned feature releases
Explore support and maintenance

The detail that matters.

The parts that make the biggest difference, and how we handle each one.

Planned before a line of code.

Every project starts with a short discovery. We map your users, data and workflows, then agree a clear scope so you know what is being built and why.

Build plan

Working
  • Map users and workflowsDone
  • Agree scope and prioritiesDone
  • Design key screens in FigmaDone
  • Build core featuresLive
  • Test and review releaseNext

Faster builds, checked by people.

We use AI to draft code, write tests and spot likely bugs earlier in the build. A developer reviews every change before it reaches your users.

AI review summary

Example

Pull request ready for review. Adds invoice export to the admin area, with tests for empty and partial data. One query may be slow on large accounts. Suggest adding an index before merging.

Checked by a person before it goes out

Built on tools that last.

We choose proven, well-supported technology so your software is easier to maintain, extend and hand over later. Every project is documented as we go, so nothing lives only in one person's head.

Our usual stack

Next.jsReactTypeScriptNode.jsPostgreSQLStripeVercelAWSOpenAIClaudeFigma

Work and examples.

Real projects first, then examples of how we'd approach yours.

Own product · Web app

InfinityFX

Forex market analysis with AI-written explanations and Stripe subscriptions.

Read the case study
More workSee everything we've built.Client projects and our own products, with what we did on each.See all work

Example projects

How we would approach it. Illustrations, not client results.

Example project · SaaS products

A training provider turning courses into a subscription

A training company sells courses one at a time. It wants a members platform with monthly plans, team accounts for employers and progress tracking, without building something too large to launch.

  • Agree the smallest product worth charging for
  • Design sign-up, onboarding and the learner dashboard
  • Set up Stripe plans with per-seat team billing
See SaaS products

Example project · Dashboards

An online retailer that needs one view of profit

A growing e-commerce brand checks Shopify, Meta Ads, Google Ads and Xero separately every Monday. Each report tells a different story, and nobody is sure which products make money after ad spend.

  • Agree how profit per product is calculated
  • Connect Shopify, both ad accounts and Xero
  • Design a Monday view for the founders
See dashboards

Example project · Internal tools

A trades business quoting from a shared spreadsheet

A heating and plumbing firm prices jobs in one large spreadsheet, books engineers by phone and chases sign-off on WhatsApp. Quotes go out late, and details get lost between office and site.

  • Map quoting, booking and job sign-off steps
  • Turn the price list into a quote builder
  • Add a shared calendar for engineers
See internal tools

How it works.

From first call to launch and beyond. You'll always know what's happening and what's next.

  1. 01

    Discover

    We learn how your business works and what the software must do.

  2. 02

    Design

    We map the data and design the key screens in Figma for sign-off.

  3. 03

    Build

    We build in short cycles and share working versions as we go.

  4. 04

    Test

    AI-assisted tests run on every change, and a developer checks each release.

  5. 05

    Support

    We launch, monitor and keep improving the software with you.

What you get.

Included with software from Infinity, whichever way you start.

  • Scope document and technical plan
  • Clickable designs in Figma
  • Production-ready web application
  • Admin area for your team
  • Stripe billing and webhooks set up
  • Documentation and handover notes
  • Monitoring, backups and update plan

Ways to start.

Software quoted per project. Every option is confirmed after a short call, with a fixed price before we start.

Prototype

Test the idea first.

For founders and teams who want to see and test an idea before a full build.

  • Discovery workshop
  • Clickable Figma prototype
  • Technical plan and estimate
  • User feedback round
Start a project
Recommended

Product build

A working product, ready to launch.

For businesses ready to launch a SaaS product, dashboard or internal tool.

  • Design and full build
  • Accounts, roles and admin area
  • Stripe payments where needed
  • Launch and handover
Start a project

Ongoing care

Monitored, maintained and improving.

For teams with live software that needs updates, fixes and new features.

  • Monitoring and error alerts
  • Security and dependency updates
  • Monthly feature time
  • Priority support
Start a project

Questions, answered.

How much does custom software cost?

Every project is different, so it is quoted after a short call, with a fixed price agreed before we start. Ongoing support and maintenance runs on a fixed monthly fee.

How long does a build take?

A focused tool or dashboard usually takes a few weeks, and larger SaaS products take longer. We agree a date before we start and share working versions along the way.

Can you work with our existing software?

Yes. We can review an existing codebase, fix issues and add features, or connect it to new tools through its API. We start with a short audit so we understand what is already there.

How do you use AI in development?

We use AI to draft code, write tests and review changes for likely bugs. A developer checks everything before it goes live, and we agree with you up front which data AI tools can see.

Which technology do you use?

We usually build web software with Next.js, React and TypeScript, with PostgreSQL for data and Stripe for payments. We pick well-supported tools so your software is easier to maintain later.

What happens after launch?

We can stay on for a fixed monthly fee to monitor the software, apply updates and build new features. If you prefer to take it in-house, we hand over the code with full documentation.

Goes well with.

One team runs it all, so every piece joins up.

Build

AppsWe design, build and launch iOS and Android apps that feel native and stay simple to use. One team takes your idea from first screen to App Store.Explore apps

Grow

AIWe put AI to work in your business, from assistants that answer customers to automations that clear admin. Every setup is tested, and a person checks it before it goes live.Explore AI

Build

Shopify appsWe design and build Shopify apps that feel part of the admin and are ready for Shopify's review. Public or custom, we handle the build, billing and launch.Explore Shopify apps

Tell us what to build.

Tell us what you need. Charlie will come back with a plan and a price, usually within one working day.

Start a projectSee pricing
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