Latest Callstack News & Updates

See the latest news and media coverage for Callstack. We track all announcements, press releases, and industry mentions in real time, all in one place.

Callstack

React and React Native development services provider

callstack.com

Headquarters: Wrocław, Poland
Founded year: 2016
Company type: Private company
Number of employees: 200–500
Industry: IT Services & Consulting

Last updated Today

Latest news about Callstack

In short: Callstack expanded its AI engineering ecosystem with Agent Conf, specialized models like Apex, and tools for automated React Native performance.

Company announcements

July 31 Callstack

Callstack presents replay experiments achieving 8.8-second mobile QA flows

It details 20 repeated runs, 38 Maestro flows, and 36 repair trials, showing a 3:18 agent time reduced to 8.8 seconds via replay.

July 8 Callstack

Callstack made hybrid iOS apps compile 39% faster with React Native Brownfield

The update leverages prebuilt XCFrameworks from React Native 0.83+, reducing build times significantly especially for Expo projects.

June 3 Callstack

Callstack introduces AI-supported brownfield migration to React Native

The framework reduces migration time from weeks to days, with AI handling setup, requirements, and testing, though human review remains essential.

May 27 Callstack

Callstack announces Apex, a fast specialized model for React Native

Based on Gemma 4, it is trained for React Native engineering tasks, offering higher speed and lower cost. A private beta is available.

Media coverage

March 11 ITNEXT

Expo UI, The Death of WebViews, and Gary the Potato-Powered LLM | by The React Native Rewind | Mar, 2026 | ITNEXT

Agent Device by Callstack is not that… well… this is awkward. Agent Device is a set of tools inspired by Vercel’s Agent Browser.

March 7 Forbes

Forbes forbeswomen Anna Lankauf from Callstack. "They think they wouldn't do anything. I also had such fantasies"

After selling a company worth half a billion zlotys, Anna Lankauf moved to the other side of the market and supports start-ups as...

9 December 2025 Medium

Callstack to Demonstrate On-Device AI in React Native Apps | by Roman Fedytskyi | Medium

Callstack is hosting a live session to show developers how to run large language models on React Native apps, highlighting offline AI and...

22 July 2025 Puls Biznesu

Americans are buying Polish Callstack

The Wrocław software house was acquired by American Viking funds in a transaction valuing it at approx. 0.5 billion PLN. Some Polish investors exchanged shares...

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