We support and inspire other developers and companies to launch their products for everyone at the same time, on every platformHire us
In cross-platform development we trust! As co-creators of React Native, two years ago we dove into the new wave of software development with open minds and hearts, evangelizing and teaching how to write once and run everywhere.Join us
We are well-known in the community, contributing to many Open Source projects, and organizing the first European React Native conference, React Native EU.Join us
Co-Founder & CTO
Co-Founder & CEO
Callstack’s goal is to help you and your team deliver a great product. That’s why working with us feels significantly different to what you might have experienced with external teams. We feel like your developers, just working remotely today.See our work
We make sure that your app is not only cutting-edge, but rock solid in the long term.
We're happy to use any software you prefer, be it Slack, Asana, Trello, etc.
We are your own full-time employees, but with a short-term commitment.
Working with Callstack has helped us complete several large projects and raise the developer IQ!
Not only does Callstack have tremendously talented engineers, but I know they care about the success of the project as much as I do. Having a true partner is a wonderful experience and gives us the ability to move so much faster than we could without them.
We at We Are Voice realized the need to have a React Native app for our choral music service. In that process, Callstack became a natural development partner for us given their deep knowledge of the platform. Despite the geographical distance, our collaboration has been successful with strong deliveries on time, together with a good communication.
We worked together for over 9 months to deliver a game-changing educational platform with some forward-thinking design elements (...) I would have no hesitation in recommending Callstack to others, to provide a flexible solution to an existing workforce or on a longer-term basis as part of a remote team.
Callstack team cares deeply about not just the project but also the people they partner with. It’s not often that you see this in a Sam with Deep domain expertise and relentless energy.
We worked with Callstack on our React Native app. Being half way around the world, they were very communicative and followed our technical instructions carefully.