Software development cost calculator 2026
Free software development cost estimate with realistic EUR 5k-150k ranges. Calculate an app, website, SaaS or automation in seconds by type, complexity and timeline. validate with a human usually in under 30 minutes.
We'll send you a one-pager with scope, phases, risks and integrations — no commitment, usually reply in under 30 minutes.
This calculator gives a quick estimate using public coefficients. A real quote requires understanding scope, integrations and risks — we do that by email, no commitment. For detailed market ranges by project type, read the 2026 guide on software development cost with phased breakdowns and pricing-model trade-offs. Once your range is clear, see how to hire the build: phases, fixed ranges by project type and a direct form.
Choose the right service for what you want to build
If the calculator range makes sense, the next step is to review the landing page for your project type. Each one explains scope, deliverables, common integrations and when we are the right fit.
How to use this calculator (and what it doesn't replace)
- Pick the type (web/SaaS, app, bot, API…).
- Set the complexity based on roles, integrations and admin.
- Adjust the timeline in months — very short timelines cost more due to parallelization.
- Hit Validate with a human to email the estimate with context.
Useful for: SaaS & web, applied AI, internal dashboards and Stripe integrations. It doesn't replace a proposal with scope, milestones and risks — see how we work at RoviDev.
What drives software development cost (and why estimates vary)
A reliable software development cost estimate isn't a flat dollar figure — it's a range that depends on a handful of dominant factors. This estimation tool returns a fast indicative range; below is what actually moves the number when we turn it into a real quote:
- Scope clarity: roles, screens, auth, payments, admin. Ambiguity is where 30% of the overrun lives.
- Integrations: Stripe, Redsys, HubSpot, Salesforce, ERPs, BI tools, custom APIs. Each integration adds engineering and edge cases.
- Data & compliance: GDPR, HIPAA-ish, financial logs, data migration from legacy. Compliance multiplies QA time.
- Performance & reliability: real-time, multi-region, SLA, observability, on-call. "Just make it work" is cheaper than "must not go down".
- Timeline pressure: parallelising 3 streams to ship in 2 months costs 30–60% more than the same scope in 4–5 months.
- Post-launch support: hour-pool, milestone evolutions, maintenance window. Often forgotten in raw quotes.
If you want a calculator output stress-tested against a real brief, send us the form output and we return a one-page assessment with phases, dependencies and risks — usually in under 30 minutes.
FAQ — Software development cost estimate
How accurate is this software development cost calculator? It returns an indicative range with ±30% variation. It's a sanity check, not a binding quote. To calculate software development cost precisely you need a brief with integrations, data and risks identified.
How much does it cost to build an app or MVP? Usually from a few thousand to tens of thousands of euros depending on screens, auth, payments and integrations. The calculator gives a starting range; the brief defines reality.
Why do two "similar" projects price differently? Data migration, compliance, languages, support SLA and legacy debt change effort more than screen count.
What's the difference between estimate and estimation calculator? An estimation calculator returns a quick range from a few inputs. A real estimate is a written document with scope, milestones, risks, dependencies and acceptance criteria — that's what we deliver after the calculator step.
Does the cost include maintenance? Not by default. After launch we can agree an hour-pool or milestone evolutions — detailed in the proposal.