Custom software development, built by an in-house team
Rinaztec is a custom software development company based in Barnsley, UK, working with businesses worldwide. We build bespoke web applications, internal tools, customer portals and SaaS platforms that fit how your business actually works. Projects start from $15,000 and take 6 to 10 weeks. Everything is built in-house, and you own the full source code.
- FROM
- $15,000
- TIMELINE
- 6-10 weeks
What is custom software development?
Custom software development (also called bespoke software development) means designing and building software for one organisation's specific needs, rather than buying a generic product. It makes sense when off-the-shelf tools force workarounds, when you need systems to talk to each other, or when the software itself is your competitive advantage.
What we build
Custom web applications
Dashboards, booking systems, quoting tools and workflow apps for your team or your customers.
Internal tools and admin panels
Replace spreadsheets and copy-paste with one tool that fits your process.
Customer portals
Give customers self-service access to orders, documents, progress and invoices.
SaaS platforms
Multi-tenant products with subscriptions, roles and APIs, built to scale.
Integrations and APIs
Connect your CRM, accounting, e-commerce and operations systems so data flows automatically.
What's included
- Custom-designed interface for your users
- Real-time data and live updates
- Multi-user roles and permissions
- Integrations with your existing tools
- API access if you need it
- Cloud hosting that scales automatically
- Full source code, owned by you
- 90 days of free fixes and tweaks
How a custom software development project runs
- 01
Talk
A free 30-minute call. You explain the problem, and we tell you honestly if we can help.
- 02
Plan
We map the whole project before any code, and you approve the plan and the budget.
- 03
Build
Weekly demos and a working preview link from week one.
- 04
Launch and grow
We ship it, then stay on for new features, fixes and scaling.
How much does custom software development cost?
Custom web applications start from $15,000 and typically take 6 to 10 weeks. Cost depends on the number of user types, screens, integrations and how much data the system handles. We give a fixed quote after planning, and you can also hire a dedicated part-time engineer from $4,500 per month for ongoing work.
Why businesses choose Rinaztec
In-house engineers
The people on your call are the people writing your code. No outsourcing, no hand-offs.
Preview in week one
A working preview link early and weekly demos, so you always see real progress.
Fixed, honest quotes
You approve the plan and budget before we write code. No surprise invoices.
You own everything
Full source code, accounts in your name, no lock-in and no licence fees to us.
Custom Software Development questions, answered
Why choose a small in-house studio over a large agency?
You talk directly to the engineers building your product, there are no hand-offs to outsourced teams, and decisions happen in days rather than weeks.
Do you work with businesses outside the UK?
Yes. We are based in the UK and work with clients across the UK, Europe, the US and the Middle East.
Can you take over an existing codebase?
Yes. We start with a code review, fix the urgent issues, then continue development.
Do you offer ongoing maintenance?
Yes. Ongoing maintenance starts from $900 per month, and a dedicated part-time engineer from $4,500 per month.
Who owns the software?
You do. You receive the full source code and all accounts are in your name.
Tell us what you want to build
A free 30-minute call with an engineer. We'll tell you what it takes, what it costs, and whether we're the right fit, even if we're not.