Core Service
Custom dashboards, internal systems, portals, and workflow automation for businesses in Spain, built around your actual workflow with multilingual support where you need it.
Custom software development is the design and build of software made for one business's specific workflows, rather than a generic product sold to everyone. KeyTech builds internal systems, client and supplier portals, dashboards, and workflow automation for businesses in Spain. Does your process genuinely need custom software, or would a well-configured existing tool do the job for less? We will tell you honestly either way. Custom development only makes sense once you have outgrown what off-the-shelf tools can realistically support.
2022
Company Founded
Company Founded
65+
Projects Delivered
Projects Delivered
6
Countries Served
Countries Served
4.7★
Avg. Company Review Rating
Avg. Company Review Rating
Custom Software Development in Spain Features
Replace manual spreadsheet tracking with live, centralised business data.
Connect your CRM, accounting (Holded, Sage), payments (Stripe, Redsys), email, SMS, and WhatsApp so information moves without manual handling.
Multi-role access, granular permissions, and audit logs for the people who need it.
Spanish and English interfaces, with support for regional languages such as Catalan where your users need them.
Systems for processes that do not fit a generic SaaS product.
Migrate years of spreadsheets or an ageing application into a maintainable, supported platform.
PRICING
Most custom business software in Spain costs between €20,000 and €280,000+ (excl. 21% IVA). Most mid-sized businesses land between €30,000 and €70,000 with a hybrid delivery model; agencies in Madrid and Barcelona often quote higher. Cost depends on scope, integrations, data migration, user roles, and compliance needs. Pricing last reviewed: [Month Year]. Ranges are indicative; a scoped quote depends on your requirements.
Replaces Excel workbooks. 1–2 user roles, central database, reporting and exports. Typical timeline 6–10 weeks.
Client or supplier portal, accounting and payment sync, granular permissions, audit logs, automated alerts. Typical timeline 3–5 months.
Legacy migration, high-volume processing, SSO, and strict compliance. Typical timeline 6–10+ months.
HOURLY RATES
Hourly rates for software development in Spain generally run from about €20/hr for offshore freelancers to €150/hr for large consultancies. The right model depends on your risk tolerance and procurement needs.
High overhead and account-management heavy. Suited to enterprise and public-sector procurement.
Strong local communication, but budgets can escalate under open-ended billing.
Senior technical leadership and architecture plus dedicated engineers, with overlap hours agreed up front and milestone-backed pricing.
Low sticker price, but higher rework risk and weaker accountability.
COST DRIVERS
Two projects that look similar can differ by tens of thousands of euros. These five factors explain most of the gap.
Proven component frameworks like Filament or Tailwind UI can cut frontend time by roughly 30–40% for internal tools. Fully bespoke, brand-led interfaces and multiple languages add design and testing effort.
Standard APIs (Stripe, Redsys, Holded, SendGrid) take around 15–30 hours each. Legacy or proprietary systems take 40–90+ hours.
Clean databases migrate predictably. Years of inconsistent spreadsheets add cleanup and validation work.
Multi-tenant hierarchies (suppliers, field staff, finance, management) cost more than a single staff view.
Meeting GDPR and Spain's LOPDGDD shapes hosting, retention, access controls, and audit trails.
AFTER LAUNCH
Budget 15–20% of the initial build cost per year for maintenance, security updates, and minor improvements. Ask any vendor what is not in the quote.
Frameworks, browsers, and third-party APIs change. Dependency updates and monitoring keep the system secure and reliable.
Commonly €50–€350 per month on EU infrastructure, scaling with load.
Transactional email, SMS, WhatsApp, mapping, and payment-gateway fees are separate from development and should be budgeted.
BUILD VS BUY
Custom software pays off when the cost of manual work and tool sprawl clearly exceeds the build cost.
Annual cost of the problem = (hours lost per week × hourly staff cost × 52) + wasted SaaS subscriptions.
15 staff each lose 4 hours a week to reconciliation and re-entry. At a blended €25/hour that is about €78,000 a year. Add €12,000 in overlapping SaaS fees and the drain is roughly €90,000 a year. A €50,000 portal that removes most of that can pay for itself within roughly a year. Real savings depend on how much manual work is actually eliminated.
If your team loses under 10 hours a week and a €60/month tool solves 90% of the problem, do not build custom software. We will say so.
HOSTING & COMPLIANCE
Businesses in Spain have specific data-protection, invoicing, and payment requirements. We design for them from the start.
Access controls, retention rules, audit trails, and data-subject request workflows designed around GDPR and Spanish data-protection law, with the AEPD as the supervisory authority.
Deployment on EU cloud regions, including Spain where available, with encrypted backups and role-based access.
Integrations with Holded, Sage, Stripe, and Redsys, designed with Spanish invoicing and tax-reporting rules in mind. Requirements in this area change, so we confirm current obligations with your gestor during scoping.
FIRST-HAND EXPERIENCE
Examples of the kinds of systems we have delivered, including multilingual and multi-role operations platforms.
A dedicated verification engine connecting multiple verification providers behind a unified workflow.
View Case StudyA CRM built around insurance operations and product-specific commission tracking.
View Case StudyReal-time inventory and a multilingual, multi-role operations platform supporting Russian, Turkmen, and English.
View Case StudyPatient records, OPD/IPD workflows, and departmental operations in one system.
View Case StudyOUR APPROACH
A pragmatic, anti-fluff approach to custom software.
If an off-the-shelf tool or simple integration solves your problem for a fraction of the price, we will tell you to use that instead.
All code, database schemas, and repositories transfer to your company. No lock-in and no platform licence.
Clear deliverables at each phase with fixed-price phases, so you can budget with confidence.
Laravel, Filament, Next.js, and PostgreSQL or MySQL, so any competent developer can maintain and extend your system.
You don't need a complete technical plan before talking to us. Start with what you want to build, fix, or improve.
Tell us what's happening today, what's getting in the way, and what you'd like to improve.
We ask questions and understand your workflow, users, priorities, and existing systems.
We agree on the scope, important features, responsibilities, deliverables, and expected timeline before development starts.
We design, develop, test, and keep you updated as the project moves forward.
We help with launch and handover. If you need support or further development, we can continue working with you.
Tell us how you work today, what's getting in the way, and what you'd like to improve. We'll help you decide what makes the most sense.