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.
Your estimate
Get a quote for this scope
Internal CRM / management tool · 2 features · Web (browser, desktop and mobile)
Send your selection as it is. A CTO reads it and replies within one business day with the questions that move the range and how they would phase it.
| Phase | Share | Hours | Cost |
|---|---|---|---|
| Discovery and scope | 12 % | 45 – 85 | €2,600 – €7,700 |
| UX/UI design | 10 % | 35 – 70 | €2,200 – €6,400 |
| Development | 58 % | 215 – 410 | €12,800 – €37,100 |
| Testing and QA | 15 % | 55 – 105 | €3,300 – €9,600 |
| Launch and deployment | 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. Diagnostic & Blueprint: a written plan and a closed quote in two weeks →
If what you need is a custom software development company that closes the price per phase, with the code and the hosting in your name, that is what we do.
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
Your selection above goes with your message. Add 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.