We are a digital design company known for creating effective interfaces of e-commerce, WWW and software. We work with companies from B2B & B2C sector.

Data Driven Design in Technology

Our clients

What we do

We treat analysis, designing and engineering as one unified process.
Making project conceptualization, planning and action one process reduces risks associated with changes in complex business environments.

Business Design & Consulting

The store can be developed and transformed in various ways. We will help you see the possibilities and find the best scenario. We do this by running qualitative and quantitative user surveys, listening to stakeholders and rigorously testing business hypotheses.
  • Market research and Benchmarking
  • WWW analytics
  • Usability audit (UX & UI)
  • E-commerce strategy

Interface Design

We translate specific business requirements to functional prototypes and graphic design that can be tested with users. In this way, we can check our solutions concepts.
  • Usability and interface design
  • Graphic Design
  • Usability Tests
  • A/B Test

Interface Implementation

The effective interface requires detailed programming and preparation for display on multiple devices with different resolutions. The cherry on top is well-chosen animations that are now a standard for modern applications. We care about the details.
  • Interface coding
  • Interface animation
  • Implementation on: PrestaShop, WooCommerce, WordPress
  • Support in interface implementation on: Magento, PWA, dedicated B2B platform

We create interfaces for






We create strategies and interfaces based on quantitative and qualitative data.
We believe that positive customer experiences are the result of a solid approach to business, design and technology.
The effects of cooperation often depend on the quality of the relationship. You can be sure that the Partner will take care of your project.
We look at what we do, at the same time we care about details.

Last works

  • All
  • UX Design
  • Wdrożenie eCommerce
  • Wdrożenia Web & SaaS
  • Audyt UX


We choose to work with Otree when designing a great customer experience and usability are crucial for the project’s success. We highly appreciate designers’ business experience that is always backed up by accurate data analysis. We really value their intuition and the ability to come up with the right solutions for the right clients at the right point of time. The end results are always all about well-thought through details, impeccable aesthetics and great experience of an end-user.

Artur Piekarczyk Visionary, Allwins

Otree was taking care of redesigning our website. The project included work on the information architecture, mockups, coding and implementation. Otree’s innovative solutions helped the user get much easier access to the information and our offering while giving them a WOW effect that we all really cared about. The project implementation resulted in over 20% increase in quality traffic. Thanks to the increase of traffic and well-implemented SEO strategy, 4challenge’s business grew substantially over a year.

Paweł Sokołowski CEO 4challenge

About us

Otree is like a tree, has strong developed roots that have seen and survived. It grows further, develops broad branches and shares its fruits.
Dawid Sadulski Partner. Head of Business
Experienced e-commerce manager (+15 years), analyst, ecommerce & omnichannel consultant.
Bartłomiej Rybak Partner. Head of Technology
Experienced IT manager (+15 years), analyst, ecommerce & omnichannel consultant.
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