App development
When a product needs more than a website, we build an app. Web and mobile, full stack, from the first sketch to the App Store and into production.
We do not start with two hundred screens. We start with an MVP that solves one real problem, put it in front of people and build on what they actually use. If an AI tool already built most of it and it keeps breaking, that is a rescue sprint, and we run those every week. Details are on the programs page.
What we develop
Mobile apps for iOS and Android from a single codebase (React Native and Expo), web apps, internal tools that replace a spreadsheet mess, and B2B SaaS products.
If you have an idea and are not sure whether it is an app or a site, that is the first conversation we have, and the audit that comes with it is free.
The stack
React Native, Expo, Node, Postgres, Next.js. One language across the whole stack (TypeScript) means a smaller team, faster iteration and code that stays maintainable for years, not only until one developer leaves.
We build by hand and with AI, and everything an AI tool writes gets reviewed by a person before it reaches production. That is the step most vibe-coded projects skip, and it is where they break.
From idea to the App Store
We start with the MVP, run it on staging and TestFlight builds, then iterate. Every week you see something new you can try, instead of waiting three months for a reveal that misses.
Before launch we set up security, backups and monitoring, and we walk you through the store submission so the developer accounts stay in your name, not ours.
What an app costs
Apps start at €8,000 and typically run three to six months. Larger products are split into phases with fixed milestones, so you pay for delivered work rather than a promise.
The price is fixed after the free audit. Within a phase you pay 50% up front and 50% before launch, and 12 months of support is included. Monthly options are on the programs page if you would rather keep a team on retainer.
Why us
The same team that built the booking platforms and partner integrations for our own nautical brands builds your app. We run boat4you in production ourselves, with real bookings, two partner APIs and real money moving through it.
The code is yours. You get the repository and the documentation, and we teach your people to run it. No agency lock-in and nothing held hostage.
Common questions
How much does app development cost?
Apps start at €8,000 and the final number depends on scope. Larger products are split into phases with a fixed price per milestone, so you pay as things progress.
Do you build for both iOS and Android?
Yes. React Native and Expo mean one codebase that ships to both, so you are not paying for two separate apps.
What is an MVP and why start there?
An MVP is the smallest version that solves the main problem and can reach real users. You validate the idea early instead of spending the budget on features nobody opens.
Who owns the code?
You do. We hand over the repository and the documentation, with no vendor lock-in. You can continue with us or with anyone else.
Can you take over an app an AI tool half-built?
Usually yes, and we see it every week. We review what the tools produced, keep what works, repair the rest and take it to production. The free audit tells you how much is left.
How do we work together across time zones?
We are in Split, Croatia, inside the EU. Weekly demos, English throughout, and our afternoons overlap with US mornings.
Related services
Have a project in mind? Write to us or call +385 95 7235 521 — we reply the same day, with a rough estimate within 24 hours.