Mobile apps
Flutter for iOS and Android from a single codebase with native behaviour. App Store and Google Play publishing, signing, listings and policies included.
FlutterDartiOSAndroid
Madrid · Software studio
Software done right, from idea to store.
We design and build mobile apps, desktop applications and data platforms. For clients and as our own products, asking people only for the data that is actually needed.
- iOS
- Android
- macOS
- Windows
- Linux
- Web
8products of our own
5+weboperating systems
11languages in a single app
2025founded in Madrid
Services
What we do
We cover the whole cycle: design, development, store publishing and operations. Without outsourcing the hard part.
Desktop applications
JavaFX for macOS, Windows and Linux with native, signed and notarized installers. Finder integration, system menus and updates.
JavaJavaFXjpackageNotarization
Backend, APIs and data
Java APIs with Spring Boot or Quarkus on PostgreSQL or MongoDB, microservices with Kafka, pipelines that import and normalize public sources, and Docker or Kubernetes deployments.
JavaSpring BootQuarkusKafkaPostgreSQLMongoDB
Web applications
Angular front-ends with vector maps, KPI dashboards and admin panels. Fast, accessible and served from your own infrastructure.
AngularTypeScriptMapLibre
Applied AI and automation
Language models integrated into real workflows: content generation, data analysis and assistants inside your application, with cost and privacy under control.
LLMAgentsAutomation
Technical consulting
Architecture, code and security reviews, go-live and maintenance. For teams that need judgement, not more meetings.
ArchitectureSecurityOperations
Products
What we build for ourselves
Our own applications, from phone to desktop: four already available and four on the way. Each one explains what data it uses and why.
Carbura
Fuel prices for France, Spain, Italy and Portugal on a map, from official sources. Free, no ads and no account.
QR Atlas
Scan, create and organize QR codes. History with a map, tags and favorites, in 11 languages.
Densatum
Open, preview and create ZIP, 7Z, TAR and RAR with AES-256 encryption. The same app on Mac, Windows and Linux.
Congestus
See what fills your disk in seconds: the biggest files, a folder map and the leftovers you can clear.
Silueta
Body measurements and progress photos aligned with a ghost camera. Gaining or losing, you decide.
Rayita
Tallies, timers and streaks for the things you care about, with a history of every tap. In 10 languages.
Colorea
Color by numbers, by zones or freehand, with a catalogue of pages and your own gallery of drawings.
Piezzle
Jigsaw puzzles with new images every week, a daily puzzle and your own photos, which never leave your device.
How we work
A diode lets current flow in one direction only
We apply the same idea to software: everything flows towards the person using it, and we only ask for what is needed to make it work.
01
The minimum necessary
Every application asks only for the data and permissions it needs, explains what it uses them for and, when an external service adds real value, says so clearly. No collecting just in case.
02
Truly cross-platform
One codebase, native behaviour on each system: adaptive icons, shortcuts, Finder integration, widgets and system notifications.
03
From data to screen
We cover the whole chain: public source imports, API, map and app. No middlemen, no black boxes, and every piece documented.
04
Built to last
Automated tests, continuous integration, up-to-date dependencies and documentation a person can still read a year later.
Company
Diode Logic
Diode Logic SL is an independent software studio based in Madrid, founded in 2025. We work for clients who need a whole product, not just a screen, and we publish our own applications for mobile and desktop.
Our speciality is the full chain: from a public data source or a business process to an app in the App Store, a signed macOS installer or a web dashboard in production.
Track record
- More than eleven years building with Java and JavaScript/TypeScript, the last seven with Angular, on greenfield projects and legacy systems alike.
- Sectors: banking, insurance, energy, public administration and e-commerce, in France and Spain.
- Roles: full-stack development and technical leadership of teams of four to eight people within organizations of up to fifty developers.
- How we work: microservices with Spring Boot and Kafka, serverless on AWS, Kubernetes and OpenShift, TDD and DDD, code reviews and katas with the team.
- Background: electrical engineering and a master’s degree in computer science. Hence the diode.
JavaSpring BootQuarkusJavaFXFlutterDartAngularTypeScriptNode.jsPostgreSQLMongoDBSQLiteKafkaAWSKubernetesDockerTraefikMapLibreOpenStreetMap
- Legal name
- DIODE LOGIC SL
- Office
- Avenida de Manoteras 24, planta 2
28050 Madrid, Spain - Founded
- May 2025
- Experience
- More than eleven years in Java, web and mobile development
- Activity
- Computer programming and consulting (CNAE 6210, 6202)
- Platforms
- iOS, Android, macOS, Windows, Linux and web
- Languages
- Spanish and English
Contact
Let's talk
A project, a question about one of our apps or a proposal? Write to us. We reply on business days.
Office
Avenida de Manoteras 24, planta 2
28050 Madrid, Spain. By appointment.