Custom Software & App Development – icoso consulting S.L.

Services

Custom Software & App Development

Consulting that also builds: we develop custom software and mobile apps — and we know from our own product experience what really matters between concept and app store.

Many consultancies recommend software; we have designed, built, tested and brought it to store readiness ourselves. Together with developers from our partner network we deliver solutions in which architecture, quality assurance and data protection are designed together from day one — the very disciplines we have been consulting on for more than two decades.

What we build

  • Mobile apps for iOS and Android from a single code base (Flutter) — from prototype to store release.
  • Backends and APIs on European infrastructure (Python/FastAPI, PostgreSQL).
  • Internal tools and dashboards that follow your processes instead of bending them.
  • Interfaces and integrations between existing systems — cleanly specified and testable.
  • AI-supported features with good judgement: EU-hosted, data-minimising, traceable.

Proven on our own product

With Luna, icoso consulting S.L. has developed its own health app from first idea to launch readiness — built consistently on privacy by design: sensitive data is encrypted client-side with AES-256, so that even the operator cannot read it; AI personalisation runs on EU-hosted infrastructure with anonymised signals. The package includes a CI/CD pipeline with automated device tests, production monitoring, the complete GDPR documentation set (DPIA, records of processing, DPAs, TOMs) and the review processes of the App Store and Google Play.

What this means for you: we know the practical pitfalls first-hand — from key architecture to store approval. More about the product at luna-femtech.com, details also in our references.

Our standard

  • Quality from the start: test strategy and automation are designed together with the architecture — not afterwards. This is where our core test management expertise flows in directly.
  • Privacy by design: data minimisation, EU data residency and clean processor chains are architecture decisions, not appendices.
  • Operations included: monitoring, alerting and release processes are part of the delivery.
  • Knowledge transfer: your organisation can maintain and evolve the solution itself.

Have a product or internal tool in mind? Get in touch — we will think it through with you.

Let's talk about your project.

Straightforward and personal — we'll get back to you quickly.

Get in touch

Or directly: +34 619 13 73 23 · info@icoso.es