How long is a piece of string? A rough guide is a simple proof of concept may cost between £0 and £5,000 and typically takes 4–8 weeks, while a minimal viable product (MVP) usually ranges from £5,000 to £20,000 over 8–12 weeks. A full application can cost between £20,000 and £50,000 and take around 3–6 months to develop. More complicated applications often fall in the £50,000 to £100,000 range with timelines of 6–9 months, while complex business platforms can exceed £100,000 and take 9 months or more. Ultimately, the final cost depends on factors such as features, integrations, scalability, and ongoing support requirements.
AI and no-code tools can create a prototype into existence in an afternoon. It feels like magic right up until you hit the 80% wall.
AI tools are fast at producing demos, but they’re not adept at architecture. For a business owner, this creates a performance trap. The result is an app that feels sluggish and becomes a maintenance problem when you run into a real-world case. That final 20%, the part that makes a product secure, scalable, and actually production-ready, is where the real complexity lies.
If you’re a business looking to build for the long term, here's a breakdown of what you need to get professional software made.
Bespoke software is a significant investment. However, you have to look at it as a core business asset. Based on 2026 UK market data, the canny business owner needs to budget for quality upfront to avoid paying twice later.
London agencies often add a 10–20% premium to their day rates simply because of the postcode. We in the North offer that same high-end engineering without the markup. Here are the typical UK project costs and timelines for the coming year:
A simple internal tool might get your workflow sorted in two months for £12k. Enterprise-scale systems that handle your entire operation can easily exceed £100,000. At Shape, we will help guide and direct you to which type is best suited for your needs.
If your app is unoptimised, it’s not just annoying for the user. It becomes engineering debt that will eventually require an expensive refactor.
Slow load times and laggy interactions don't just frustrate users, they quietly leave, dropping retention and revenue. What starts as a minor performance issue builds up over time as new features get added on top. Eventually, the cost to fix it far exceeds what it would have taken to build it right the first time. Shape will find the right balance between delivering quickly and maintaining the scale your app needs.
Launching the app is only the start. You need to consider the Total Cost of Ownership (TCO) if you want your software to stay relevant and secure.
The approximate annual maintenance cost is 15–25% of the original build. If you spent £50,000 developing the app, you should expect £7,500–£12,500 annually just to maintain stability and security.
Small costs often surprise businesses later:
How you pay for your software determines who carries the risk. For most UK SMEs, the choice usually comes down to two models.
Fixed-price model:
A price is agreed for a defined scope. If the work takes longer than planned, the agency covers the cost. This provides businesses with budget certainty and clear expectations.
Time and materials (T&M):
You pay for every hour worked. It offers flexibility for research-heavy work but creates an open-ended financial commitment. The client carries the risk of overruns.
If you have already experimented with vibecoding and discovered your prototype cannot scale, you may not need to throw everything away.
Our accelerator approach is based on the idea of taking fragile prototypes and turning them into reliable production software within a defined timeframe.
Bespoke software is not just a cost. It is a long-term strategy that, if done well, will solve problems that off-the-shelf tools cannot solve.
The Forrester benchmark states that well-executed custom software projects deliver 200–300% ROI over five years through efficiency gains and reduced operational errors.
Cheap prototypes can quickly turn into costly rebuilds. Companies that invest in a professional development team from the outset avoid performance problems, architecture issues, and hidden costs down the road.
Build it right the first time, and your software will grow with your business. It's an investment, but it is one that pays dividends well beyond 2026.
