When I started using React Native, I quickly saw the mobile revolution coming. With my love to Open Source, I dedicated myself to spread the word about React Native and apply its strenghts to accelerate mobile development.
We are active Open Source citizens and we want the Open Source community to benefit from our work just like we benefit from theirs.
As a group of innovators that works with bleeding-edge technologies, we often encounter problems that haven't been solved yet.
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.
From a start-up to an industry leader, we have worked with organisations of all sizes and structures to help deliver React and React Native features on time. Check what they are saying.
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.
In a few words: it’s been amazing. We think they are great developers and we learned a lot from them. They communicate efficiently with the stakeholders and provide helpful feedback and suggestions. Even though they are external contributors, we consider them as colleagues and part of the team.
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 to deliver a game-changing educational (...). 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.
Working with Callstack has helped us complete several large projects and raise the developer IQ!
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.