Pricing · · 7 min read
How much does custom software actually cost in 2026?
By AI Venture Studio
Custom software quotes vary widely because two projects called a CRM can contain completely different workflows, integrations and risks. Traditional agency projects can reach tens of thousands of pounds, while a focused build may cost much less.
AI-assisted development can reduce the effort needed for some design, coding and testing tasks, but it does not remove discovery, security, integration or support work. Here are useful planning ranges, with the caveat that a proper estimate needs a defined scope.
How has AI-assisted development changed software costs?
AI tools can help an experienced team draft code, tests and documentation more quickly. The benefit is greatest on well-understood work, while unusual integrations, unclear requirements and high-risk decisions still need careful human attention.
Producing code is only part of a software project. Judgement, architecture, user research and guardrails remain important, and a low quote that omits them can create expensive problems later.
What can custom software cost in the UK?
Rough 2026 ranges for AI-assisted builds in the UK:
- Professional website with lead capture: roughly £1,000 to £3,000 for a focused brief
- Automated lead follow-up system: roughly £500 to £2,000 when integrations are straightforward
- Custom CRM tailored to one workflow: roughly £3,000 to £10,000
- Wider business operating system with CRM, automations, dashboards or a client portal: roughly £8,000 to £25,000
- Mobile app through store submission: roughly £5,000 to £20,000, depending heavily on features
Where the money actually goes
In an AI-assisted build, you are not paying for typing. You are paying for discovery (understanding your real workflow, not the idealised version), architecture (decisions that determine whether the system still works when you have 10 times the data), and guardrails (approval workflows, access control, backups, and testing).
This is why two quotes for the same project can differ by a factor of five. The cheap one usually skips the parts you cannot see until something goes wrong.
Build versus subscribe: the real comparison
Off-the-shelf tools can look cheaper per month, but count the full stack. A growing business may pay separately for CRM seats, forms, email, automation and reporting. Add the real licence prices for your team, along with implementation and staff time, rather than relying on a generic monthly estimate.
A custom system has an initial build cost plus hosting, maintenance and future improvements. It may offer better long-term value when it replaces several subscriptions or removes substantial administration, but the payback period should be calculated from your own costs.
Questions to ask any builder
Whoever you talk to, including us, ask these:
- Who owns the code and the data? (The answer should be: you.)
- What happens if you disappear? Can another developer take over?
- What is included after launch: fixes, changes, support?
- How do you handle security, backups and GDPR?
- Can I see systems you have shipped that are in daily use?
The bottom line
If an earlier quote made a useful system unaffordable, it may be worth pricing a smaller first version. Ask each supplier to separate essential workflows from optional features and explain the assumptions behind the estimate.