Oleg Sotnikov CEO at AppMaster

5.0 ★

AI Development Review from Oleg Sotnikov

Diffco built a complex, production-grade AI agentic system and backend for our client's fintech platform owning architecture, AI/ML components, and AI agents in a security- and compliance-sensitive environment. They delivered on time and within budget, communicated proactively, and operated like part of our own team, taking ownership and suggesting better solutions throughout. Deep AI/ML and senior backend expertise. We'd happily work with them again.

Julia Platova VP Strategic Partnerships at OVA Solutions

5.0 ★

Mobile App Development Review from Julia Platova

We partnered with Diffco for a comprehensive software development project aimed at delivering a mobile application and backend system for our client. The goal was to create a seamless, secure, and scalable solution within a 4-month timeline and $50k-$200k budget. Diffcos team was highly professional from start to finish. They handled everything: UI/UX design, backend architecture, API integration, and deployment. After the launch, they continued to support us with maintenance and performance optimization. The application received positive feedback and has proven stable and scalable. Were highly satisfied with Diffcos expertise, commitment, and ability to deliver real results.

Max Shmatkov Manager at Centerligh

5.0 ★

Mobile App Development Review from Max Shmatkov

As an advantage of working with this company I’d like to note that their Agile development method is amazing! Diffco earned my trust through such approach and the team’s professional attitude.

Angie Tromley-Morales, PMP CEO at House Caddy

5.0 ★

Mobile App Development Review from Angie Tromley-Morales, PMP

We hired Empat to design and build the MVP of House Caddy, a household management app that keeps receipts, warranties, manuals, and repair history in one place, with reminders for expiring warranties and maintenance. The product also helps homeowners prepare a full digital home history for future property transfers. Empat delivered end-to-end work: discovery, UX/UI design, Flutter mobile development, and a Python backend. They implemented a clear flow where users first create home appliances/systems and then attach documents and repairs to each item. A major highlight was Empats AI expertise. AI features simplify the entire user journey by auto-filling appliance details from photos/docs/links, assisting with utility provider setup, and importing contacts to speed up adding contractors. This reduced manual input and made onboarding fast and intuitive. Communication was excellent, with proactive brainstorming, clear sprint updates, and on-time delivery. The MVP is market-ready, early feedback is very positive, and Empat proved to be a reliable, product-driven partner with strong mobile, backend, and AI capabilities.

Vitalii Drach CEO at RD2

5.0 ★

Mobile App Development Review from Vitalii Drach

We collaborated with this team to develop custom software for tracking our client base and analyzing performance metrics. The solution allows us to monitor client success in real time, visualize key trends, and make data-driven marketing decisions. The Empat team was professional, communicative, and highly attentive to our needs. They quickly understood our workflow and created a system thats both intuitive and scalable. Thanks to their work, weve streamlined our internal processes and gained much better visibility into our clients results. Were very satisfied with the outcome and would definitely recommend Empat to anyone looking for a reliable software development partner.

Namik Abdulzade cto at Paymonix

5.0 ★

Software Development Review from Namik Abdulzade

Collaborating with this team has been exceptional from beginning to end. They quickly grasped our goals and delivered a scalable, high-quality payment platform with seamless integrations and an intuitive interface. Their technical skill, attention to detail, and proactive communication kept everything running smoothly and transparently. We were particularly impressed by their ability to manage complex requirements, build strong analytics, and design a checkout experience that fits our brand perfectly. The project was delivered on schedule, surpassed expectations, and has already made a meaningful impact on our operations. We confidently recommend this team to anyone seeking a reliable, talented, and forward-thinking development partner.

Alex Silverstein Chief Technology Officer at Unified Digital Group, LLC

5.0 ★

Software Development Review from Alex Silverstein

Over the past 13 years, I’ve valued the opportunity to work alongside this team. Their expertise played a central role in my company’s success, and I’ve come to rely on them for their consistency, attention to detail, and thoughtful approach.

Philipe Araujo Business Analyst and Quality Engineer at Motive Retail

4.8 ★

Software Development Review from Philipe Araujo

We have had a highly positive experience utilizing EffectiveSoft's staff augmentation services for our Business Analyst and Quality Engineer needs. The professionals provided were not only highly skilled and knowledgeable but also integrated seamlessly with our existing team, requiring minimal ramp-up time. Their expertise in their respective fields significantly enhanced our project's efficiency and overall quality. We confidently recommend EffectiveSoft for any organization seeking top-tier talent to augment their teams and drive successful project outcomes.

Sasja Ihn Christensen Senior Director, Head of Digital Business Development at MAERSK BROKER

5.0 ★

Software Development Review from Sasja Ihn Christensen

Maersk Broker is pleased to provide this reference letter for EffectiveSoft, our trusted collaborator for complex web projects. From the initial stages of our projects, the team at EffectiveSoft demonstrated a deep understanding of our requirements and have been apro-active part of any problem-solving process. The team of offshore developers has been well-run through their lead developer, and we have only experienced a professional approach to our projects, as well as a pleasant and trust-based collaboration = between all members in the EffectiveSoft team and our own team. EffectiveSoft has furthermore proved to be highly flexible, adapting to our evolving needs and delivering reliable results under shifting circumstances and shifting priorities. They have furthermore been very quick to find and add the necessary resources to the team when needed, and we have only experienced professional and highly skilled consultants. This has also made on-boarding into projects faster and more efficient. In conclusion, it has been a pleasure working with EffectiveSoft, and I have no doubt that they will continue to be an asset to any collaborators in the future, adding value through their professionalism, dedication and understanding of business needs.

Mary Undisclosed at Undisclosed

3.2 ★

Mobile App Development Review from Mary

Differenz System, thank you so much for your help with my custom application development project. Your expertise and professionalism was fantastic. I would definitely recommend your company to anyone looking for a top-notch web development service. Thanks again.

Romy Parikh Owner at 3W Creators LLP

5.0 ★

Mobile App Development Review from Romy Parikh

I am very pleased with Differenz System's overall services and support along with their state of the art mobile application delivery. Your team has excellent communication skills and a fast response and turnaround time. Highest work quality. I can say that Differenz System is a honest and decent group of people with the highest work ethic I have seen for development team. Wishing you people very best. Cheers.

Peter Meldrum Digital Product Manager at London Sport

5.0 ★

Web Development Review from Peter Meldrum

Differenz have provided London Sport excellent web development services across three products. We have been delighted with all areas of their work; expertise, technical knowledge and account management. We have asked Fazil and his team to take on the rebuild of an existing product, the ongoing development of another and build another from scratch – on all they have exceeded expectations.

Kristine Wilson Owner at KOMYOON Inc.

5.0 ★

Cross-Platform Review from Kristine Wilson

I've been working with AllianceTek for over five years, and they have been an invaluable technology partner. They seamlessly took over a complex project from previous vendors and have since played a crucial role in managing both our app and website. Their team is highly knowledgeable, resourceful, and adaptable, with expertise across various platforms. No matter the challenge, they approach each project with patience, professionalism, and a problem-solving mindset. Their ability to listen, provide clear solutions, and ensure smooth execution has made them a trusted extension of our team. Beyond their technical capabilities, what truly sets AllianceTek apart is their commitment to client success. They are responsive, proactive, and consistently go above and beyond to deliver results. I highly recommend them to anyone seeking a reliable, skilled, and collaborative development partner.

Kevin Labianco Founder at Plantrip

5.0 ★

Mobile App Development Review from Kevin Labianco

We recently worked with AllianceTek regarding an app update, and they were professional, timely, and responsive as usual. Would recommend again!

Szymon Królikowski PM at WAYF

5.0 ★

Software Development Review from Szymon Królikowski

Merix Studio supported us with team augmentation to one of our projects. Both quality and pace of work was great, their responsiveness, transparency and willingness to help was beyond expectations. Thank you!

Michal Wojewoda CEO at Petsy sp. z o.o.

5.0 ★

Web Design Review from Michal Wojewoda

Merixstudio is our exceptional UX/UI design partner, transformed our startup. We needed a UX/UI for a seamless transition from web to app. Exceptional communication, led by Kuba, their designer, ensured alignment with our vision. Their visually stunning, user-centric designs exceeded our expectations. Fast delivery and acurate designs helped us with the transition. We highly recommend Merix to startups seeking top-tier design services a true game-changer in UX/UI design.

Yves Latour Managing Partner at Lunchgate AG

4.8 ★

Software Development Review from Yves Latour

We've chosen Merixstudio to raise our core product's UX and UI to the next level. Within a short time, we got an affordable, skilled and effective team off the ground. We've not been disappointed, so far! To this moment, each team member shows the expected professional skills and a high passion for their work and we are able to collaborate in a very agile and customer centric way. It's a pleasure to work with Merixstudio.

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.

Mark Gratiot Director of R&D at Streamline Automation

5.0 ★

Cross-Platform Review from Mark Gratiot

In addition to building out a native remote inspection app for iPads, Zco concurrently ported the software to a Xamarin platform for Windows users. Zco has released nine major iterations of the iPad app, each available in the App Store, as well as the initial version of the cross-platform Xamarin build. Their nimble team boasts a wide breadth of skills to match any given situation. Having clear documentation upfront has reduced onboarding time.

Katie Matter Project Manager at Southwestern Advantage

5.0 ★

Mobile App Development Review from Katie Matter

Zco Corporation provided full-stack mobile app development to an educational resource retail organization. They worked in Unity to build a cross-platform resource for users to advance through various curricula. The app has successfully been moved into preproduction and the second phase of development, completely satisfying project stakeholders with the quality of both its designs and functionality. The Zco Corporation team is highly creative and collaborative throughout their work.

J. Michael Webb CEO at CheckMySpot

5.0 ★

Startup Review from J. Michael Webb

J. Michael Webb from CheckMySpot chose Zco Corporation for app development due to its expertise. Zco adeptly developed a hybrid mobile teledermatology platform and an admin website, demonstrating excellent communication, responsiveness, and innovation. Despite the project's evolving and innovative nature, Zco seamlessly integrated Webb's intent and met all challenges, leaving him with no suggestions for improvement. (Verified via email/call)

Randal Bouverat Founder at FootForward

5.0 ★

Web Development Review from Randal Bouverat

We needed specific expertise helping us grow our platform in 2024 and Scaleup Consulting came through. They had demonstrable depth of knowledge and versatile skills. They were professional, a pleasure to work with, and we cannot recommend them highly enough.

Taikwan Chin-Wright Head of Product at Project Antelope

5.0 ★

Software Development Review from Taikwan Chin-Wright

I engaged Scaleup Consulting Australia to implement custom features for my Sharetribe marketplace, including gift cards and various user experience improvements. The quality of their work was excellent, with a fast turnaround time. They quickly understood my requirements and delivered exactly what I needed. The team was communicative and professional throughout the process. I appreciated their fixed quotes, which ensured the project stayed on budget. Their expertise and efficiency stood out, making the collaboration smooth and hassle-free. Since implementing the updates, my marketplace has seen tangible improvements. Sellers are pleased with the enhanced features, leading to an increase in listings. I highly recommend Scaleup Consulting Australia to anyone needing custom Sharetribe solutions. Their knowledge and speed make them a reliable choice.

Undisclosed Founder at Savvy ESC

5.0 ★

Software Development Review from Undisclosed

I was new to software development so was a little wary of what I was getting myself into. But Jayen and the team at Scaleup Consulting have been outstanding. Jayen very quickly alleviated my concerns by his proactive approach to my project and they progressed its development consistently. We were able to work through any issues well and I will continue to use them post-launch. Highly recommend using them.

Undisclosed Owner at Consumer company

4.3 ★

Web Design Review from Undisclosed

I hired Fingent to create a web-based application for my website's visitors. They communicated their strategy effectively and adhered to our agreement. The pricing was notably low compared to other quotes I received. Ultimately, the project was a huge success, and they continued to provide support even after delivery. (Source: 3rd Party Review Platform)

Alex Burkhead VP of Product at Findlay International

5.0 ★

Software Development Review from Alex Burkhead

Fingent brought both attention and creativity to our project. They polished our storyboard and developed the tool we needed. Very responsive and very talented.

Abraham Isaac VP- Sales & Marketing at KOGLAND Commerce Pvt Ltd

4.2 ★

Software Development Review from Abraham Isaac

Though we faced a few glitches initially, the process is now smooth and running well. The effort taken by the management is quite appreciable and now we have an eCommerce site which is getting better by the day and also the number of trnxs have also gone up significantly. It gives us grt pleasure to be working with Fingent and we look forward to completing this project at the earliest.