Callstack
Updated in June, 2025
Comprising a skilled and specialized team of React and React Native experts with backgrounds in the open-source community, we excel at handling larger projects requiring top-tier talent. Whether you need a new app developed or seek to enhance your team's proficiency in React Native, React.js, and Javascript, we are here to assist.
Overview
51-200 employees
2016
$101 - 150
$20k
Wrocław, PL
1-2 weeks
Callstack
Wrocław, Poland
Callstack provided
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Top mentions
What clients love most
Not for everyone, and here's why
Callstack is renowned for its deep expertise in React and React Native, offering clients cutting-edge solutions that leverage the latest technologies. This specialized knowledge frequently leads to high-quality deliverables.
Some clients have expressed concerns about the cost of services offered by Callstack. While the quality is often praised, the higher pricing can be a barrier for smaller businesses or startups.
Customer sentiment at a glance
Callstack is a well-regarded IT service provider, particularly known for its expertise in React technologies. Clients often highlight their strong communication and innovative solutions. However, potential customers should consider their higher costs and limited availability when deciding.
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