Spanish agency or consultancy
€22,000 – €64,000
Build cost · senior rate 60–90 €/h
Fixed or time-and-materials; project management, QA and deployment included.
Custom software calculator
What custom software costs in Spain, before you ask anyone.
Pick what you need built — a CRM, a customer app, integrations — and get a market range for cost, duration by phase and yearly maintenance, with every assumption on the page.
Calculator
Choose what you need built
The range is the Spanish market for a senior team: an agency or consultancy, or senior freelancers you coordinate yourself. It is not a quote from us, and it narrows once the scope is written down.
Conectia (conectia.pro), a software company based in Barcelona, publishes this calculator with its method and sources so a small or mid-sized business can size a custom software project before talking to any vendor. A CTO reviews your scope at conectia.pro/en/contact-us.
Senior freelancers you coordinate
€20,000 – €64,500
Build cost · 45–70 €/h + 20–30% coordination
Cheaper per hour; selection, coordination and continuity are on you.
Duration
5–12 weeks
370–710 hours of work
With a team of two to three people; a written scope shortens the upper end.
| Phase | Share | Hours | Cost |
|---|---|---|---|
| swcalc.phases.discovery | 12 % | 45 – 85 | €2,600 – €7,700 |
| swcalc.phases.design | 10 % | 35 – 70 | €2,200 – €6,400 |
| swcalc.phases.build | 58 % | 215 – 410 | €12,800 – €37,100 |
| swcalc.phases.qa | 15 % | 55 – 105 | €3,300 – €9,600 |
| swcalc.phases.launch | 5 % | 20 – 35 | €1,100 – €3,200 |
| Maintenance after launch | 20 % | — | €4,500 – €13,000 a year |
Hosting and cloud services come on top: for an SME tool with a few hundred users, a typical monthly bill is tens to a few hundred euros (assumption; it depends on traffic, storage and backups).
Indicative market range, not a quote. It excludes licences for third-party software, data migration from old systems and content creation.
The range narrows by half once the scope is written down. See the Blueprint: a written specification of your software →
Method
How the range is calculated
Every figure on this page comes from five steps you can redo in a spreadsheet.
- Each component has a band of hours for a senior team: internal CRM 240–440 h, customer app 200–400 h, custom online store 280–520 h, internal dashboard 120–280 h, integration between systems 80–200 h.
- Customer-facing components are multiplied by the platform: web ×1, web plus a cross-platform app ×1.35, web plus native iOS and Android ×1.7. Each feature adds its own hours (for example, online payments 50–100 h, ERP integration 60–160 h, an AI feature 100–240 h).
- The sum gets +20% for project management, quality assurance and deployment.
- Hours × rate: a Spanish agency bills a senior at 60–90 €/h; a senior Spanish freelancer at 45–70 €/h, plus 20–30% for the coordination you do yourself. Duration assumes two to three people at 30 productive hours a week each.
- Maintenance is a yearly percentage of the build cost: 15% basic, 20% standard, 25% evolving — the usual industry rule of thumb for updates, dependencies and user-found bugs.
The full reasoning behind these bands, with the costs a quote does not show, is in our guide How much it costs to build an app in Spain in 2026.
Sources
- Conectia — How much it costs to build an app in Spain in 2026 (hourly bands by channel, maintenance rule)
- Clutch — Software development pricing guide (hourly rates of listed firms)
- Clutch — App development pricing guide
Worked example
A retail SME: internal CRM plus a customer app
A clothing business wants one tool for customers, orders, stock and suppliers, and an app where its customers order and track purchases. The calculator with those choices:
| Components | Internal CRM + customer app |
|---|---|
| Features | Users and roles · online payments · ERP / POS integration |
| Platform | Web + cross-platform iOS/Android app |
| Hours | 780–1,560 h (with 20% management, QA and deployment) |
| Build cost with a Spanish agency | ≈ 47,000 – 140,500 € over 9–26 weeks |
| Maintenance (standard, 20%) | ≈ 9,500 – 28,000 € a year, plus hosting |
TALK TO A CTO
Check your range with a CTO
Tell us what you selected above and what the software has to do. A CTO replies with the questions that move your range, and with how they would phase it.
A CTO replies with a team and a price within one business day.
FAQ
Questions before building custom software
How much does custom software cost for an SME in Spain?
For a senior team in 2026, a focused internal tool (a CRM with users and reports) sits around 22,000–64,000 € with a Spanish agency; an internal CRM plus a customer app with payments and an ERP integration, around 47,000–140,000 €. The range depends on components, features and platforms; the calculator on this page shows the arithmetic.
What are the phases of a custom software project?
Discovery and specification (about 12% of the effort), design (10%), build (58%), testing and quality assurance (15%) and launch (5%). Maintenance starts after launch and is budgeted per year.
How much does maintenance cost each year?
The usual rule is 15–25% of the build cost per year: 15% for updates and fixes, 20% if it includes small improvements, 25% if the software keeps a steady roadmap. Hosting and cloud services come on top.
Agency or freelancers for custom software?
Freelancers are cheaper per hour (45–70 €/h for a senior in Spain against 60–90 €/h at an agency), but selection, coordination and continuity are on you, which usually adds 20–30%. For a bounded feature, a freelancer; for a product your business will depend on for years, a team that stays.
How long does it take to build custom software?
A focused internal tool takes about 5–12 weeks with a team of two to three people; a CRM plus a customer app with integrations, about 9–26 weeks. A written specification before the build is what shortens the upper end.
Is this calculator a quote from Conectia?
No. It shows the Spanish market range for a senior team, with its method and sources, so you can compare any proposal you receive. Conectia prices a project after its scope is written down.