Ocultia: an anonymiser to use AI without leaking private data
Anonymise text and documents before pasting them into ChatGPT, Gemini or Claude. It runs in your browser, with no install or account, and your data never leaves your computer.
Custom digital products, with AI where it really adds value.
A team with decades of experience, by your side from the first decision through launch, helping your project grow with you.
You need us if you're looking to...
Build a custom digital product
We define, design and develop it with you, and take it all the way to production.
Bring AI into your business
We find where it adds value, test it and integrate it into your processes.
Validate an idea before betting on it
Strategic design, prototyping and real experiments to learn what to build.
A team that takes it all the way
Full cycle, from consultancy to launch, with no vendor lock-in.
25+years of experience15+years as a studio200,000+users reached10+sectorsTourismFinancePublic sectorCultureEnergyUnionsInternational cooperationFood & drinkSecuritySportsEngineeringEducationJournalismIndustry
Lostium Products
Our showcase of in-house digital products.
PRO
Ocultia
AI privacy tool
Automatically anonymize documents before sharing them with any AI, or making them public.
Fromadoc
Edtech tool
Automatic generation of online courses. Turns a Word or Google Docs document into an interactive course, no CMS.
AI Talk
WordPress voice plugin
A WordPress plugin that turns your texts into audio with synthetic voices, integrating Google Cloud Text-to-Speech.
The project that's getting stuck
An ambitious idea that no one quite knows how to ship. A platform that has outgrown itself. Processes that could run far more smoothly with artificial intelligence. The kind of challenge where others stop halfway.
That's exactly where we come in
We help you pin down what you need, design and build your custom digital product and get it up and running: web and mobile apps, AI automations or a WordPress site. Then we stay by your side to help it grow. One team, from the first idea to launch.
Why Lostium
Expert, stable team
The same people from start to finish, no churn.
A concrete first step
We scope a first phase or pilot to see results early and decide with real data.
Full-cycle and flexible
From consultancy to production: technical direction, mixed team or turnkey.
Applied AI, privacy by design
We choose the model for each task, running it locally when your data requires it.
No ties to a single provider
Everything documented so you can carry on with whoever you choose.
We build our own products
Not just hours: we ship real products of our own.
A small team, big results
You'll always talk to the people who actually build your product, not a salesperson. An experienced, creative team, more responsive and agile than your Typical Consultancy®, that gets to know your business and delivers real impact.
And AI, where it adds value
We help you find which tasks and processes in your business genuinely benefit from artificial intelligence, test it with a focused pilot and integrate it with training and support for your team.
We're based in Madrid ♥, but we collaborate with companies worldwide.
Need help with your digital project?
We have 25+ years experience in retail, telecom, tourism and financial services. And 15+ since we founded our studio. These are some companies we've worked for and/or are our current clients.
Lostium Labs
Side projects and experiments where we try out ideas and technologies.
Hottest
Club del Picante
For spice lovers
A club for spicy-food lovers, packed with curiosities, recipes, products and the spiciest city guides, starting with Madrid.
FermentApp
iOS & Android App
Gastronomic training platform in app format. A hands-on crash course for homemade Ferments & Pickles designed, developed and beautifully illustrated entirely by our studio.
RaceRoar
Live race tracking
Share your live position. RaceRoar estimates when you'll reach every point on the course, with no sign-up and no personal data.