React Galaxy
We don't just ship products
WE SHAPE THE SPACE

Callstack is the Total Software Engineering Consultancy that transforms organizations and teams through transformative apps.

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React Universe

We use the React Universe tech stack to make app development

Faster with
Full stack

Develop the front and back end in one language.
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Faster with Fullstack
Cross-platform Capable

Cross platform ready

Build across multiple operating systems and platforms.
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Lean and efficient

Streamline team structures and reduce duplication of work.
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Lean and Efiicient
Smoother Safer Simpler

Smoother, safer, simpler

We go beyond the brief to find and fix issues that stop your app from performing.

A UNIVERSE OF POSSIBILITIES

Deep dive into React Universe

Case studies

Trusted partners

Services

We create game-changing apps that transform your business from the inside out.

Team Upskilling

Team Upskilling

Unlock the full potential of your in-house team - we can help your developers tackle the most complex challenges
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Special Services

Team Upskilling

Use super apps in your organization

Master of the react universe
Optimization of Products and Processes

Optimization of Products and Processes

Diagnose performance issues and develop solutions that establish new standards for your product and operations
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Special Services

Optimization of Products and Processes

Use super apps in your organization

Master of the react universe

Community

We build, maintain and contribute to the most popular Open Source libraries, events and resources in the React and React Native
eco-system.

Explore all community

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