Mobile Applications
Native and cross-platform apps for iOS and Android, fast and built around how people actually use them.
Callisto
Software Studio · Andorra
We build software in Andorra. Apps, websites, and games that hold up over time.
Five things we're good at.
We take a product from idea to launch, then stick around to keep it healthy.
Web Development
Sites and web apps that load quickly and work for everyone, from a simple landing page to a full platform.
Video Games
Game development for mobile and desktop, from a small idea worth prototyping to a finished, playable release.
Security Engineering
Security operations, application security, and infrastructure hardening. We find the weak points and help you close them before they become a problem.
Maintenance & Support
Updates, security fixes, and a person to call when something breaks, so your product keeps working after launch.
A small studio, in it for the long run.
Callisto SLU is an independent software studio registered in Andorra, built on twenty years of experience shipping software. We work with founders and businesses who care about getting things right, and we stay involved long after a product ships.
We're space enthusiasts, the founder most of all, so we named the studio after one of Jupiter's moons: Callisto.
Small team. You talk to the people doing the work.
Let's talk.
Got a project, a question, or just want to say hi? Drop us an email and we'll get back to you within a business day.