Apps.
Websites.
AI.
Digital products that actually work — native iOS & Android apps, high-performance websites and AI integrations.
Native
Mobile Apps.
We build native iOS and Android apps from idea to App Store. Swift, Kotlin, SwiftUI — with premium UX and performance.
High-Performance
Websites.
Premium websites and web apps with Next.js. Lighthouse score 99, SEO optimized, lightning fast — on every device.
AI &
Automation.
Custom AI chatbots, workflow automation and LLM integration. Claude, GPT-4 and open-source — directly integrated in your products.
Your code,
your property.
You get 100% code-ownership. No lock-in, no hidden costs. Source code, repos, documentation — all yours.
More than just
numbers.
Honesty, quality and full control for our clients.
Your code, your repos, your property. No lock-in, no hidden license costs. You own what we build — completely.
From Valencia
to the world.
As a Spanish company we work with clients across Germany, Spain and Europe — remote, on time, in three languages.
More about usSelected
work.
Real projects. Live in production. For clients in DACH and Spain.
Verve & Void
AI Interior Design — by Charline Renée
Luxury interior design iOS app with Claude AI room analysis, personalised palettes and the voice of Charline Renée.
Sensora
Where Care Meets Intelligence
AI-powered patient monitoring platform with real-time vital tracking, early warning system and clinical decision support.
AI Pipeline
NovaChat
Custom AI Chatbot
GPT-4 powered chatbot trained on company data — integrated into web + WhatsApp Business.
Who we
are.
Small. Personal. Hands-on. No agency wall between you and the people writing your code.
Mark Otto
Founder & Lead Developer
Software developer with a passion for clean solutions. After years in enterprise projects and multiple locations, I founded Otto Solutions in Valencia in 2024 — with the goal of building digital products that actually work.
Quality
Premium code, thoughtful design, tested functionality.
Ownership
Your code, your repos, your property. No lock-in.
Speed
Fast delivery without compromise on quality.
Honesty
Clear communication, fair prices, realistic promises.
From solo developer
to SL.
We're young — but with a clear plan. Here's where we come from and where we're going.
Ask
Sol.
Our AI assistant answers your questions — or send us an email directly.
Looking forward to hearing from you.
30 min consultation
Get to know us — no strings attached. We'll discuss your project.