About JSGuru
JSGuru is a high-quality mobile app development company where their clients come first. They develop your desired products and aim to achieve excellent, long-term customer support so that you can focus on the core of your business. They work with clients in a practical & transparent style and use the latest tools & technologies to produce an effective platform for fruitful co-operation. They are not just great developers, they are also advisors guiding your business forward.
Last updated May 13, 2026
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JSGuru Reviews
Write a ReviewSmart infrastructure project that paid back the investment in under two quarters
Elliot Thorne / Managing Director, Tech - Redwood Capital AdvisorsApr 29, 2026
Project summary: Our legacy LMS had been built for a classroom-first world. Hybrid delivery had exposed its limitations and student satisfaction scores had reflected that for two consecutive years.
I came into this engagement as a sceptic. We had been through a failed implementation with a previous vendor and I had high standards for what evidence of competence looked like before I would trust a partner with our core systems. This team earned that trust progressively — through the quality of the discovery documentation, the rigour of the technical proposals, the consistency of the sprint deliveries, and ultimately the stability of the production system. I no longer lead with scepticism when recommending them.
Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism
The engagement was priced at the quality level rather than the budget level. We evaluated the alternatives and concluded that the delta was a reasonable premium for the reduction in delivery risk
Questions & Answers
Platform engineering work that let our product teams move independently at last
Erik Lindqvist / Chief Technology Officer - Nordic Cloud ABMar 14, 2026
Project summary: A content deal had given us the rights to a major catalogue but our delivery infrastructure could not stream it reliably at scale. We needed a cloud-native video platform in under six months.
We had worked with three agencies before this engagement. The comparison is not flattering to the others. What distinguished this team was a systematic approach to understanding the problem before proposing a solution — something that sounds obvious and is practiced far less often than it should be. The delivery phase ran to schedule, the codebase is clean enough that our internal engineers made positive comments during handover review, and we have not logged a critical incident in five months of live operation. We intend to use them for our next phase of work.
Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism
The engagement was priced at the quality level rather than the budget level. We evaluated the alternatives and concluded that the delta was a reasonable premium for the reduction in delivery risk
Questions & Answers
Outstanding service and exceptional results
Elena Petrov / CTO - TechEast LtdFeb 15, 2026
Project summary: The project demanded deep technical expertise and a thorough understanding of our business domain.
From the discovery workshop to the final handover, the experience was seamless. The team invested real effort in understanding our business goals before writing a single line of code, and that foundation paid dividends throughout. Every milestone was hit, every deliverable was polished, and the few issues that arose were resolved before we even had to ask. The solution has already delivered measurable ROI and we are planning our next engagement with them.
Proactive risk management, domain expertise, fast turnaround on feedback, genuinely invested in our success
Initial onboarding took a couple of extra days, but the team hit full stride very quickly
Questions & Answers
Outsourced IT that improved both the outcome and the cost line simultaneously
Radosław Kowalczyk / Head of Development - Wisła Software Sp zooFeb 10, 2026
Project summary: A previous engagement had delivered something that worked in staging and struggled in production. We approached this project with greater rigour in vendor selection as a result.
We had worked with three agencies before this engagement. The comparison is not flattering to the others. What distinguished this team was a systematic approach to understanding the problem before proposing a solution — something that sounds obvious and is practiced far less often than it should be. The delivery phase ran to schedule, the codebase is clean enough that our internal engineers made positive comments during handover review, and we have not logged a critical incident in five months of live operation. We intend to use them for our next phase of work.
Deep domain knowledge that reduced the discovery overhead significantly, proactive risk identification before issues became incidents, delivery cadence that our stakeholders found reassuring
Their insistence on a detailed functional specification before development began felt like friction at the time. In retrospect, it was the reason the development phase ran without the ambiguity that has derailed similar projects for us previously
Questions & Answers
Best technology partner we have ever worked with
Michelle Garcia / Director of IT - HealthSystems CorpApr 16, 2025
Project summary: We set out to build a content streaming platform capable of serving a global audience with low latency.
The team demonstrated exceptional technical depth throughout every phase of the project. Communication was proactive and transparent — we always knew exactly where things stood. They challenged our assumptions constructively and suggested improvements that made the final product significantly better than our original spec. Delivery was on schedule, the code quality was outstanding, and post-launch support has been prompt and thorough. We could not have asked for a better partner.
Outstanding code quality, thorough documentation, smooth knowledge transfer, excellent post-launch support
Initial onboarding took a couple of extra days, but the team hit full stride very quickly