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Custom Web Application Development Cost and Timeline 2026 (London)

Mohamed Bah·Fondateur, Kolonell
September 4, 2026
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Custom Web Application Development Cost and Timeline 2026 (London)

Custom Web Application Development Cost and Timeline 2026 (London)

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The verdict in three sentences

In 2026, a business web app MVP costs between 25,000 and 60,000 EUR and a complete application between 60,000 and 150,000 EUR, depending on modules and integrations. The line item that blows budgets is not the code but the vague specification: expect +30 to +50% in overrun and delay. The right question is not "how much does it cost" but "what minimum scope creates value from V1".

The 2026 price benchmarks

App cost depends on three variables: business complexity, number of integrations (ERP, payroll, CRM) and UX expectations. Here are the orders of magnitude observed in 2026.

Project typeScope2026 price (EUR)Timeline
Clickable prototypeInteractive mockups5,000 - 12,0002 - 4 wks
MVP 1 core featureOne business process25,000 - 45,0008 - 12 wks
Extended MVP2-3 modules + integrations45,000 - 60,00012 - 14 wks
Complete app5+ modules, roles, reporting60,000 - 150,0004 - 9 months
Critical platformHigh availability, security audit150,000+9 months+

The day rate structures the invoice. A senior developer in Western Europe bills 500 to 750 EUR/day; nearshore (Maghreb, Eastern Europe, West Africa), the range drops to 300 to 450 EUR/day for an equivalent level, with English/French-speaking management.

ProfileWestern Europe rate (EUR)Nearshore rate (EUR)
Junior developer350 - 450200 - 280
Senior developer500 - 750300 - 450
Tech lead / architect700 - 1,000450 - 600
Product / UX designer450 - 650280 - 400
Project manager500 - 700300 - 420

After go-live, budget for application maintenance: fixes, version upgrades, small changes. Annual budget sits between 8 and 15% of build cost. An app delivered at 80,000 EUR therefore means 6,400 to 12,000 EUR/year of maintenance.

No-code vs custom: where the line sits

No-code (Bubble, Airtable, low-code platforms) lets you start fast and cheap. It hits limits as volumes grow, business logic becomes specific, or vendor lock-in becomes a strategic risk.

CriterionNo-code / low-codeCustom
Upfront cost2,000 - 15,000 EUR25,000 - 150,000 EUR
V1 timeline2 - 6 wks8 - 14 wks
Monthly platform cost50 - 800 EUR0 (hosting only)
Deep customizationLimitedTotal
Code ownershipNoYes
High-volume scalabilityRiskyControlled

The practical rule: no-code is excellent to validate an idea or cover a simple, stable need. Once the application becomes a core company asset, custom wins on 3-5 year TCO.

Mini case study

Marc, operations director of a logistics SME in London (95 employees), wants to replace Excel-based route tracking with an internal app. MVP scope: route entry, driver assignment, real-time dashboard. Estimate: 38,000 EUR of build over 10 weeks, plus 4,500 EUR/year of maintenance (12%).

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ROI calc: the tool saves 1.5 h/day for 4 coordinators, i.e. 6 h/day x 220 days = 1,320 h/year. At a loaded cost of 28 EUR/h, that is 36,960 EUR/year. The application pays back in 13 months, maintenance included. Staying on Excel, cumulative productivity loss over 3 years exceeded 110,000 EUR.

FAQ

How much does a business app MVP cost in 2026?

Between 25,000 and 60,000 EUR depending on modules. A single well-scoped core feature MVP typically sits between 25,000 and 45,000 EUR, delivered in 8 to 12 weeks.

What is the timeline for a first version?

Expect 8 to 14 weeks for an MVP in production. A clickable prototype to validate UX takes 2 to 4 weeks, before writing a line of business code.

Does nearshore really lower the bill?

Yes: a nearshore senior at 300-450 EUR/day versus 500-750 EUR in Western Europe cuts build cost by 30 to 40%, provided rigorous management and clear specifications.

Why did my budget explode on a previous project?

In 8 out of 10 cases it is a vague spec: every grey area generates change orders. A fuzzy scope adds 30 to 50% to the final budget and pushes delivery back several weeks.

How much for maintenance after delivery?

Between 8 and 15% of build cost per year. For an 80,000 EUR app, that is 6,400 to 12,000 EUR/year of maintenance (fixes, security, small changes).

Let's scope your project. Describe the business process to digitize, your indicative budget and target date: we scope a funded, realistic MVP. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.

Tags:#custom web application#business app development#MVP cost#developer day rate#web app timeline#no-code vs custom#application maintenance#operations
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Mohamed Bah

Fondateur, Kolonell

Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.