Custom software development services, built around how you work.

What is custom software development, and when is off-the-shelf enough?

Custom software development means designing, building and maintaining software around the way one specific business works. It adapts to your process, instead of forcing your team to fit a ready-made product. In the UK, many people call it bespoke software. It covers customer portals, admin panels, SaaS products, internal tools and the APIs that connect them.

Custom is not always the right answer, though. For standard jobs such as email, payroll or a simple CRM, an off-the-shelf product is usually cheaper and faster. The vendor also handles the updates. So in the first call, we ask where your process really differs from the standard. Custom software tends to pay off in four situations.

• Your process is your edge: no product models your pricing, approval or scheduling rules well.
• Your tools do not talk to each other: staff copy the same data between systems every day.
• Licence fees keep climbing: the bill grows with every new hire or client.
• You sell the software itself: a SaaS product needs code and data that you control.

Some projects belong to our other services. A company website is a web design project, and iOS or Android apps belong to mobile app development. Likewise, an online shop sits under ecommerce consulting. Still weighing the options? Our comparison of WordPress and custom websites walks through the same buy or build logic.

What can we build: portals, SaaS, internal tools and APIs?

Most custom work falls into five groups. Each one starts from a business problem, not from a technology.

• Customer and partner portals: clients, dealers or suppliers check orders, quotes and invoices themselves.
• Admin panels and back-office tools: the screens your staff use to approve, schedule, dispatch and report.
• SaaS products: software you sell by subscription, with tenant separation, billing and usage limits.
• APIs and integration layers: services that let your website, apps and business systems share data safely.
• Legacy modernization: rebuilding an ageing system module by module while the old one keeps running.

In practice, a logistics firm might need shipment tracking with customer notifications. An insurance agency might need a quote and approval flow. Likewise, a manufacturer might need a work order screen fed by its ERP. These are illustrations, not client stories; your project starts from your own process map.

Before we propose anything, we look at what you already run. Our free website technology checker shows the platform and libraries behind a site in seconds. If you mainly need AI to automate existing tools, a smaller automation project may beat a new application. In that case, we will tell you so. For a plain-language look at the server side, read our guide to backend development.

Why does every project start with a paid discovery phase?

Discovery is the short, fixed-price phase where we turn an idea or a process into a buildable plan. Many failed projects share one cause: development started before anyone agreed on what the software should do. That is why we treat discovery as a product of its own, with six clear deliverables.

• Requirements workshop: interviews with the people who will use the software, not only with management.
• Process map: today’s flow, its exceptions and the places where data goes missing.
• Data model and architecture: entities, roles, integrations and hosting choices.
• Clickable prototype: the key flows in Figma, ready to try before any code exists.
• Scope document: user stories, acceptance criteria, priorities and an out-of-scope list.
• Fixed-price proposal: the development fee, the release plan and the payment stages.

The scope document plays the role of the requirements specification that many buyers know from tenders. If you already have a brief, bring it along. Our guide on how to write a design brief also shows which details help most. Discovery also gives you a realistic number before you commit to the larger budget.

Finally, the fee does not disappear if you continue. When you go ahead with development, we credit the full discovery fee against the build. You can find the discovery price in the pricing cards on this page.

How do we scope an MVP without cutting what matters?

An MVP, or minimum viable product, is the smallest release that solves the core problem for real users. In other words, it proves the idea works before you fund the rest. The hard part is not building it but deciding what stays out. So we sort every feature in the scope into three lists: must-have for launch, next release and later ideas.

Take a dealer portal as an example. Ordering, order status and invoice downloads go into the first release. Returns, loyalty discounts and a reporting dashboard wait for release two. By then, real usage shows which of them dealers need. As a result, most of the budget goes into features that people use from day one.

After that, we work in two-week sprints and deploy a working build to a staging server after each one. You click through real screens with test data instead of reading progress reports. When priorities change, we swap items between sprints in writing, so the budget stays visible. Our article on agile project management explains this rhythm in more detail.

An MVP is not a throwaway prototype, though. Even the first release includes automated tests, access control, logging and backups. That is because a data model that goes live usually stays for years. For the same reason, we never skip the architecture work in discovery.

How does custom software connect to your ERP, CRM and accounting stack?

Integration is where many custom projects win or lose. Your new application rarely lives alone. It needs customers from the CRM, stock from the ERP, invoices from accounting and payments from a provider. We design these links in discovery and give each one its own line in the scope document.

• APIs first: we connect through each system’s official API and read its documentation before we promise anything.
• Webhooks and queues: new orders travel through a queue, so one slow system cannot block your users.
• Idempotency: a retried message never creates the same invoice or order twice.
• Retries and logs: failed calls retry on their own, and your team sees what failed and why.
• Mapping tables: product codes, customer IDs and tax rates stay consistent across systems.

The maturity of the other side matters as much as our code. A well-documented REST API takes far less effort than an old system that only exports files overnight. When no API exists, we look at database views, scheduled file exchange or a small middleware service. Then we explain the trade-offs in writing.

For the wider picture, read our guide to CRM, ERP and chatbot integration. Moving records out of an old system as well? Our data migration guide lists the questions to settle first.

Who owns the source code, and how do you secure the IP?

You should own it, and the contract should say so in writing. Many buyers assume that paying for software means owning it. However, the law in the US and the UK is less generous. Under US copyright law, a contractor’s work counts as “work made for hire” only in nine listed categories. It also needs a signed written agreement, as the U.S. Copyright Office’s Circular 30 explains. Software does not appear on that list by name. Otherwise, the contractor generally keeps the copyright.

The UK takes a similar line. Under section 90(3) of the Copyright, Designs and Patents Act 1988, an assignment only takes effect in writing. The assignor, or someone acting for them, must also sign it. Work that employees create in the course of their job belongs to the employer. An outside agency, however, is not your employee. In both countries, then, the safe route is a written assignment in the contract.

Our contracts assign you the rights to the custom code we write for you and list each deliverable. On top of that, ownership never depends on goodwill.

• Repository: the Git repository sits in your organization’s account from day one.
• Cloud and domain: hosting, databases and the domain run on accounts in your name.
• Open source: we list every library and its licence at handover.
• Passwords: we never ask for yours; you invite us through roles.

This is not legal advice. Ask your own lawyer to review the contract, especially for a SaaS product you plan to sell.

How do we build security in with the OWASP Top 10 and ASVS?

Security is part of the scope, not a last-minute scan. We rely on two open standards from OWASP, the non-profit foundation for application security. The OWASP Top 10:2025 lists the most critical web application risks. Broken access control comes first, followed by security misconfiguration and software supply chain failures. The Application Security Verification Standard (ASVS), whose latest stable version is 5.0.0, turns such risks into testable requirements.

In discovery, we write the target ASVS level into the scope document. As a result, both sides know which controls the software must pass. In practice, that means:

• Server-side access control: every request checks the user’s role, not just the visible menu.
• Secrets management: API keys and passwords live in a vault or environment settings, never in the code.
• Dependency scanning: we track every library we ship and patch known vulnerabilities.
• Audit logs: sensitive records show who changed what, and when.
• Backups and restore tests: a backup only counts once a restore has worked.

We do not promise unhackable software; no honest team can. For systems with sensitive data, we also recommend an independent penetration test before launch. Meanwhile, you can check your site’s HTTPS setup with our SSL checker. Our password generator also helps you create strong admin passwords. For a deeper read, our article on the OWASP Top 10 explains each risk in plain language.

GDPR, the European Accessibility Act and WCAG 2.2: what applies to you?

Do you offer software or services to people in the EU or the UK? Then the GDPR can apply, even to a company in the US. When our team builds, hosts or maintains a system with personal data, we usually act as your processor. Article 28 then requires a binding written contract. It sets out the subject, duration, nature and purpose of the processing, the data types and both sides’ rights. A processor also may not bring in sub-processors without your written authorization. The UK GDPR contains the same rule.

Because our company operates from Turkey, EU and UK clients also add approved transfer safeguards. The EU standard contractual clauses are one example. Lawyers draft these documents, and we supply the technical details. Privacy by design runs through the build too. For example, we collect only the fields you need and set a retention rule for each record type.

Accessibility follows a similar logic. Since 28 June 2025, the European Accessibility Act has applied to certain consumer services. These include e-commerce, consumer banking, e-books, electronic communications and digital parts of passenger transport. Micro-enterprises that provide services are exempt. So an internal admin panel usually falls outside it. A consumer shop or banking portal, on the other hand, may fall inside, even for a non-EU seller.

Either way, we target WCAG 2.2 level AA, the current W3C Recommendation, as good practice for every interface. Our guides to GDPR-compliant websites and WCAG standards cover the basics. Our contrast checker also tests one common failure in seconds.

Fixed price or time and materials: how is custom software development priced?

Custom software development usually runs on one of two commercial models. Each one fits a different kind of uncertainty.

• Fixed price: one agreed fee for an agreed scope. It works best once discovery has produced a scope document and acceptance criteria.
• Time and materials: you pay for the time the team actually spends, sprint by sprint. It suits products whose direction will change with user feedback.

A fixed price gives you budget certainty, and every change goes through a written change request with its own price. Time and materials gives you flexibility instead; we add a monthly cap, so the budget never runs open-ended.

Our model combines the two. Discovery always has a fixed price. After that, we quote the first release as a fixed price whenever the scope allows. Later growth then runs on a capped sprint budget or with a dedicated team. As a result, you never sign a large open-ended contract before you have seen a prototype and a written scope.

Unlike many firms, we also show starting prices openly. The Pricing section on this page lists the discovery fee, the MVP Web Application starting price and the Enterprise base. Why does nobody quote one exact number before discovery? Because cost follows business rules, integrations and data, not screen count. A two-screen tool with a pricing engine and three integrations can easily cost more than a twenty-screen catalogue.

What happens after launch: maintenance, SLAs and handover?

Software keeps changing after go-live, because browsers, libraries, operating systems and your own business keep changing. Maintenance usually covers three kinds of work. Corrective work fixes bugs, adaptive work keeps up with new versions and rules, and perfective work improves existing features. We agree the mix and the monthly scope in a maintenance contract before launch.

For critical systems, the Enterprise Software Program adds a service level agreement (SLA). A useful SLA separates details that many contracts blur:

• Response time: how fast someone acknowledges an issue and starts work.
• Resolution target: how fast a fix or workaround should follow, by severity.
• Coverage hours: business hours only, or round the clock.
• Exclusions: third-party outages, changes made outside the agreed process and new features.

We set these levels together in writing. Instead of quoting generic uptime percentages, we look at your hosting and your vendors. Monitoring helps both sides here. Our free website down checker shows the basic idea. For production systems, we also set up automated uptime and error alerts.

Handover works the same whether you stay with us or not. You receive the repository, deployment notes, architecture documents and the licence list, plus a session for your developers. Clients should stay because the work is good, not because leaving is hard. You can see our work on the references page or tell us about your project.