Alexander Nikolaevsky CEO at Whitebird

5.0★

Web Development Review from Alexander Nikolaevsky

We have hired the Plavno team to develop a cryptocurrency exchange solution.allow users to make cryptocurrency transactions legally and transparently. Plavno team had to create a solution independent of third-party developers, develop frontend solutions for clients and service administrators, build a full-featured back-end that would include integration with banking and payment systems, and a multifunction module for managing currency exchange transactions, exchange rates.

Mitya Smusin CEO at Yellow Systems

5.0★

Financial Review from Mitya Smusin

Some problems can only be solved with code, but others require end-user thinking. So Plavno developers remember that the whole goal is to solve problems — not only to write code. They thought about the problem from the restaurantants point of view.They developed a food delivery app with both customer and admim panels, which covers all the necessary functionality.

Yana Romanovskaya Product Manager at Beeline

5.0★

IT Outsourcing Review from Yana Romanovskaya

Plavno was creating profiles with pulling up a lot of information (clusters). Xunit-based scoring was used when setting up a .NET 2.0 project. Scoring for this format works similarly to Junit. The team extended the products by adding features, fixing bugs. This development can change cluster parameters, cluster management system (current state of the object), customize vectors that lead to this cluster and make predictions.

Mitya Smusin CEO at Yellow Systems

5.0★

Staff Augmentation Review from Mitya Smusin

Solveit managed our comprehensive eCommerce project, developing a full-featured web platform with Node.js and React technologies. The agency also created a Flutter-based mobile app for seamless data synchronization across iOS and Android devices. We were thoroughly pleased with Solveit's expertise and adherence to deadlines. It provided timely updates and communicated openly about our project's status. Solveit's proactive approach and transparency were exceptional, particularly during the staff augmentation process, where the agency efficiently matched us with qualified candidates and facilitated a smooth onboarding. We were satisfied with Solveit's high-quality work and exceptional support.

Anna Harissis CEO and Co-Founder at OUT CO

5.0★

Design Services Review from Anna Harissis

They have an incredibly hardworking team at affordable pricing. SolveIt has built the app earlier than expected, and they continue to complete new tasks within the client's budget and timeline.

Gabriel Sabadin Founder & CEO at LifePal AB

5.0★

iPhone Review from Gabriel Sabadin

We engaged SolveIt to develop a minimum viable product (MVP) app, including a user-friendly iOS design, an artificial intelligence (AI) model, and a monetization strategy while ensuring General Data Protection Regulation (GDPR) compliance and preparing for future integrations. Despite a tight deadline, SolveIt delivered the app on time and efficiently handled beta-testing within three months, allowing us to gather feedback and launch successfully. We acquired our first 1,000 users within a month of launching the app. SolveIt's team communicated effectively, addressed issues proactively, and maintained a high level of autonomy, bringing diverse expertise that greatly benefited our project. We appreciate the agency's dedication and professionalism.

Sergey Novik Co-Founder at El Pixel

5.0★

Staff Augmentation Review from Sergey Novik

Were developing an internal image processing tool for our design team and needed two machine learning engineers, since our core developers were busy with other client projects. We required extra hands familiar with Python and computer vision, so after a developers market review, we hired them from SumatoSoft.The SumatoSoft developers joined our team and were able to swiftly adapt to our workflows, which resulted in them delivering the working models well before our hard deadline.Communication was straightforward throughout the engagement. We had video calls and exchanged brief text updates on a weekly basis. The delivered code is clean, and pull requests are well-documented.I appreciate that they pushed back on a few of our initial architecture ideas. They challenged our original approach and proposed a better method for handling the model weights. We plan to bring them back for the next phase of development.

Domien Van Eynde Team Lead at Daiokan

5.0★

Web Development Review from Domien Van Eynde

SumatoSoft is the firm to work with if you want to keep up to high standards. The professional workflows they stick to result in exceptional quality. Important, they help you think with the business logic of your application and they don’t blindly follow what you are saying. Which is super important. Overall, great skills, good communication, and happy with the results so far.

Alexander McCaig Co-Founder & CEO at Tartle

5.0★

eCommerce Development Review from Alexander McCaig

The system has produced a significant competitive advantage in the industry thanks to SumatoSoft’s well-thought opinions. They shouldered the burden of constantly updating a project management tool with a high level of detail and were committed to producing the best possible solution.

Beata Twardowska Co-Founder at Dajemy Słowo

5.0★

Web Development Review from Beata Twardowska

The team was committed, helpful, easy to collaborate, and most importantly professional and skilled. They knew perfectly well what solution we needed based on the goals we described to them. What we value the most is good communication. We were kept informed about the progress of work and we got answers to all of our questions.Our clients love the new design and now they have even better understanding of our services. We have also received many positive opinions from industry specialists.We are very satisfied with the cooperation and its results. There is not much to improve. When we first launched, we found the animations a little too fast and we had to adjust them.Every challenge has been met. Our new website is safe (0 attacks after launch), fast – despite using so many animations (page speed insight analysis showed 86 on the desktop and almost 60 on mobile), and both user- and seo-friendly.

Web Development Review from Ollie Maitland

We were particularly impressed by Naturaily's proactive and collaborative approach. They went beyond simply executing our requirements by taking the initiative to understand our underlying business objectives and offering valuable insights and recommendations. Their deep technical expertise in headless architecture, coupled with their commitment to delivering a high-quality solution and their strong communication skills, made them a truly unique and valuable partner.Our marketing team now has the independence to test and refine content thanks to Naturaily. The CMS overhaul and testing framework have made it easy to optimise our user experience without needing developer support. We can now collaborate more effectively than before, which increases productivity. We have also observed improved website performance, indicated by faster page load times. The successful deployment of a modern technology stack also provides a scalable foundation for future growth.They delivered on every performance goal while keeping us informed and building a platform that puts testing and innovation first. Naturaily's project management was highly effective. They consistently delivered items on time and were very responsive to our needs and feedback throughout the project lifecycle, demonstrating a strong commitment to our success.They guided us through every step of our platform migration with exceptional care and expertise. We're really happy with how everything has gone, and our collaboration with Naturaily is actually ongoing.

Web Development Review from Polina Medvedieva

High skills and responsibility make Naturaily a reliable, trustworthy, and professional technological partner. They grasp even the most nuanced details of our requirements and are effective in managing project needs.We can count on them even with the tiniest issues as the developers we work with are attentive, good communicators, and always stay in touch. They’re versatile enough to comfortably connect and engage with both technical and non-technical staff.Naturaily consistently delivers tasks and project stages on time, and we’ve seen a noticeable reduction in website bugs as a result. The great thing is that their team brings valuable proactive insights, thoughts, and suggestions to the table.Naturaily helped us drive the website project forward with a clear understanding of our strategic goals and operational needs – all while in a specific technological environment. They’ve been highly operational and creative whatever a challenge or change came.Naturaily used Jamstack architecture (Vue.js and Nuxt.js) to improve our website’s front-end interactivity and back-end efficiency. This upgrade laid the groundwork for additional features, crucial for the site's evolution and business growth. From the very beginning, they’ve supported us with great dedication and skillfulness, all while minimizing the need for continuous technical oversight.

Natasha Beavis Founder at Flash Learning

5.0★

Mobile App Development Review from Natasha Beavis

We worked with Stakk to develop our mobile revision app for both iOS and Android, and we couldn't be happier with the results. From the first meeting, their team demonstrated exceptional professionalism, technical expertise, and a genuine commitment to bringing our vision to life.They took the time to understand our goals, offered valuable insights to improve user experience, and delivered a sleek, high-performance app that exceeded our expectations. Communication was seamless throughout the entire process, updates were timely, feedback was welcomed and implemented quickly, and every milestone was met on schedule.Post-launch, they've continued to be a reliable partner, providing support and updates as needed.If you're looking for a top-tier mobile app development company, look no further than Stakk. They're a rare find in the tech world and we would highly recommend them.

Manfred Olbrich CEO at Education Technologies Limited

5.0★

Software Development Review from Manfred Olbrich

Stakk has delivered a high-quality product that we are pleased with. Their hybrid model offers great value for money and grants clients to strong technical capacity but also direct contact with management in the UK which really helps with transparency, communication, and ensuring the project is being delivered on thime. The team suggests improvements and meets most deadlines.At the start of the project, I drafted a huge product requirements document that included all the user journeys, my vision for the brand, including the colors and the rest of the brand, and the desired functionalities. I gave this document to Stakk, and they've executed the requirements.

Ben Smith CEO at Itsfine

5.0★

Mobile App Development Review from Ben Smith

We partnered with Stakk to build the mobile platform for #itsfinea unique, flexible weight loss concept launched pre-seed. From the outset, their team, led by Girish and Vikas, brought impressive technical and creative capabilities to the table. Communication was smooth throughout, whether through shared Slack channels or direct contact with the project manager.We collaborated closely with their UX/UI designer in daily stand-ups, and bi-weekly check-ins with the PM ensured the project stayed tightly aligned with our goals. Their process-driven approach matched ours wellevery phase was mapped out clearly, and any changes we needed to make along the way were actioned quickly and without fuss.Stakks professionalism, attention to detail, and focus on client success stood out. Their structured way of working gave us real confidence in the final product. We strongly recommend them to any founder or team looking for a trusted, high-performing partner to bring their product to life.

NADIA KOORTS Marketing Coordinator at Burquip International (Pty) Ltd

5.0★

eCommerce Development Review from NADIA KOORTS

Working with Simplr on Burquip's new website has been an absolute pleasure. From start to finish, their team showed exceptional professionalism, creativity, and attention to detail. They took the time to understand our brand, our customers, and what we wanted to achieve and then elevated it far beyond our expectations.The new website is clean, modern, and user-friendly, with a smooth online ordering experience that our customers love. Simplr communicated clearly throughout the process, delivered on time, and made every step effortless for us.Were extremely happy with the final result and highly recommend Simplr to any business looking for a professional, reliable, and talented web design team. Thank you, Simplr, for taking Burquips online presence to the next level.

Oscar Padilla Head of Digital Innovation & Growth at LatiNation Media

5.0★

Web Design Review from Oscar Padilla

Simplr was the perfect partner to design LatiNation.com. They delivered a site that not only elevated our brand but completely rebuilt our CMS to support 50+ editors and streamline workflows. The team’s discipline, innovation, and commitment made possible to create a core asset driver of growth.