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AR & VR Development Company

300.codes

Polish software house building websites, e-commerce and mobile apps that serve marketing and sales goals

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About 300.codes

300.codes is a software house in Poland that builds web and mobile products for marketing and sales teams. It belongs to a group with the agency KERRIS, which lets it pair development with marketing strategy and creative work.

What 300.codes offers

  • Web and e-commerce applications — online shops and web apps, such as a combined pharmacy and drugstore platform.
  • Mobile apps — including games and engagement apps for brand campaigns.
  • UX and UI design — interface design with A/B testing, accessibility to WCAG and attention to page speed.
  • Websites and custom software — built with PHP, Vue, React, Python, WordPress and Webflow.
  • Marketing services through its group — strategy, creative concepts, social media, media buying, performance marketing and SEO.

Who it works with

It works with brands and small and medium-sized companies. Case studies cover Melisa.pl, Wapteka.pl, the e-learning platform Dr Sim and the food brand Hortex.

Key facts

  • Based in: Poland
  • Group: part of a group with KERRIS
  • Technologies: PHP, Vue, React, Python, WordPress, Webflow
  • Compliance: GDPR and WCAG work

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

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