Unlike others, Ihar’s team did a fantastic job for us. Firstly, they helped us set up Mixpanel and define and track key SaaS metrics such as retention, churn, stickiness, adoption rate, trial-to-paid, and many-many others. Secondly, they focused on understanding our customers and conducted extensive user behavior research. We believe this actually helped their online experiments to show regular impressive boosts like 70% in conversion rates across many funnel stages and product features.

I could write a long review about what we got out of using these services, but I'm sure the following will cover it quite well. In a few days, we earned back what we paid Ihar’s team for by following their recommendations. They tested our order flow in our SaaS and pointed out a lot of friction - my only regret is that we didn't hire them a long time ago.  

Vakulski-Group solved our problems with Mixpanel & Segment in highly efficient, professional and impactful way. They are a deep repository of knowledge and were able to help us with attribution issues, instrumentation questions and technical setup challenges. They were able to solve all the problems we asked their help with.

Working with Vakulski-Group was a game-changer for our data management and visualization processes. We partnered with their team to merge our HubSpot CRM, Google Analytics 4, and PostgreSQL data into a cohesive system, and the results exceeded our expectations. Their expertise in integrating complex datasets was evident throughout the project. They seamlessly combined our data sources and developed a user-friendly Looker Studio dashboard that provides clear, actionable insights. Thanks to their work, we now have a centralized view of our performance metrics, enabling faster and more informed decision-making.

It was an absolute pleasure to work with Ihar and his team to implement Mixpanel analytics for our SaaS product. Ihar’s team’s knowledge and worth ethic are impeccable. They were readily available, communicated effectively, and worked flawlessly with my engineering team to get Segment.io, HotJar, Mixpanel implemented as specified and quoted, freeing up my time to spearhead other projects. We will be using them again for future projects.

I had the pleasure of working with Vakulski-Group twice, and it was an outstanding experience. Their team was communicative and proactive, turning our product data into actionable insights that significantly improved our onboarding. I couldn’t ask for a better partnership. Highly recommended!.

We hired Ihar's team to help us implement Segment.io, Mixpanel, and other marketing-related tools for our marketplace - Svar.se. They did an amazing job of understanding our needs, setting up the integrations, and providing us with valuable insights and recommendations. They were professional, responsive, and knowledgeable throughout the project. Thanks to their work, we are able to track key funnel steps and see the performance of our marketing campaigns. We highly recommend Ihar and his team to any digital company looking for expert help with analytics setup.

Vakulski-Group’s A/B testing transformed our user acquisition strategy. They didn’t just test random ideas—they built hypotheses based on real user data and executed experiments that led to a massive increase in our conversions. I’ve worked with many agencies, but Ihar’s team stood out for their deep understanding of both data and human behavior. They’ve become an invaluable part of our growth strategy.

Vakulski-Group was great to work with. They were able to give advice on the project before starting it, and then completed everything promptly. I would definitely recommend them to everyone.

Ihar and his team are very knowledgeable in Google Analytics and have helped us immensely. Not only are they extremely professional and professionals in their field, they are also nice guys! Without a doubt, will be working with them again!"

It was an enormous pleasure to work with Vakulski-Group on setting up our GA4 property. They did everything on time and communicated to our developers firmly and accordingly. I highly recommend Ihar and his team to everyone.

Working with Ihar and his team was an outstanding experience. Their expertise in GTM server-side setup is unmatched, and they were able to resolve complex issues that others on Upwork couldn’t. We highly recommend them without hesitation.