JSGuru builds digital products by providing product discovery, UI/UX design and software development services. We have worked with different types of companies, from startups and innovative tech companies to large corporations like T-Systems to craft innovative and groundbreaking software. Industry verticals we specialize in are Edtech, Fintech, Ecommerce, Real Estate tech, TMT (Technology, media and telecommunications), Adtech and Marketing tech. AWS-certified partner with offices in Banja Luka, (Bosnia and Herzegovina), Novi Sad (Serbia) and New York (USA). Awarded by Deloitte for Technology Fast 50 in Central Europe in 2020.
JSGuru builds digital products by providing product discovery, UI/UX design and software development services. We have worked with different types of companies, from startups and innovative tech companies to large corporations like T-Systems to craft innovative and groundbreaking software. Industry verticals we specialize in are Edtech, Fintech, Ecommerce, Real Estate tech, TMT (Technology, media and telecommunications), Adtech and Marketing tech. AWS-certified partner with offices in Banja Luka, (Bosnia and Herzegovina), Novi Sad (Serbia) and New York (USA). Awarded by Deloitte for Technology Fast 50 in Central Europe in 2020.
AI Overview
Performance snapshot
JSGuru presents a consistently strong performance profile across a broad range of software and mobile development engagements, with the large majority of reviewers awarding perfect scores. The vendor demonstrates particular depth in custom software development, mobile applications, and UX/UI design, serving clients from early-stage startups to large enterprises. Ratings across all five evaluated categories skew toward Strong, with only minor, isolated concerns around schedule adherence in a small number of engagements. No recurring structural weaknesses or declining quality trends are evident across the review corpus.
Performance breakdown
Technical expertise
StrongMultiple reviews cite proficiency across modern stacks including Flutter, Firebase, AWS, NestJS, PostgreSQL, Angular, React, Node.js, and Laravel Vapor. An anchor review references REST API integration, wireframing, prototyping, and QA within a single end-to-end mobile delivery, confirming high-density technical capability.
Project management & delivery
StrongReviewers consistently report on-time or ahead-of-schedule delivery, with tools such as ClickUp, Trello, JIRA, and Kanban cited as active workflow instruments. One engagement delivered a complete mobile app within two months; a schedule sub-rating of 3.5 from one investment consultancy reviewer is the sole notable exception.
Communication & collaboration
StrongClients across multiple industries describe daily updates, virtual meetings, email, and WhatsApp as active communication channels. Reviewers from geographically dispersed locations, including the US, UK, Germany, and Switzerland, consistently note seamless remote collaboration and proactive responsiveness with no flagged communication breakdowns.
Reliability
StrongA mobile app launch was described as functional and error-free across App Store and Google Play, and one engagement noted the alpha phase was completed on time with no mistakes. No reviews cite post-launch instability or recurring defects, reflecting consistent delivery quality across a broad client base.
Client satisfaction & outcomes
StrongTangible outcomes include a 30% increase in demand post-launch for one electronics client and an app becoming the main source of leads for a software company. An anchor review confirms successful App Store and Google Play deployment with strong end-user reception, and the majority of clients report ongoing or renewed engagements.
Best for
JSGuru is best suited for startups and mid-market companies requiring full-cycle product development, including MVP builds, mobile app development, and UX/UI design. The vendor performs particularly well on time-sensitive, cross-functional projects demanding agile delivery and transparent communication.
Clients info
JSGuru's client base spans software, financial services, energy, retail, telecommunications, nonprofit, and entertainment industries, with a strong concentration of small businesses and startups. Typical engagements range from $10,000 to $199,999, though several projects in the $200,000 to $999,999 bracket indicate capacity for larger mandates. Client sizes lean toward the 1–50 employee range, with notable exceptions including a 10,000-plus employee energy company and a 201–500 employee sales platform provider. Primary industries represented include Software & Technology, Financial Services, Energy & Natural Resources, Retail & E-Commerce, Telecommunications, Nonprofit, Entertainment. Typical client size bands include 1–10 Employees, 11–50 Employees, 201–500 Employees, 10,001+ Employees. Common project budget ranges include $10,000 to $49,999, $50,000 to $199,999, $200,000 to $999,999.
Review strength
The assessment is based on 38 reviews sourced from 4 platforms, spanning from 2017 to mid-2024. The review base is substantial and recent, with the majority of substantive reviews published between 2021 and 2024. A small number of reviews predate 2020 and should be weighted accordingly, though they remain broadly consistent in sentiment with more recent feedback. Review date range: Aug 9, 2018 - Jun 3, 2024.
Performance breakdown
Technical expertise
StrongMultiple reviews cite proficiency across modern stacks including Flutter, Firebase, AWS, NestJS, PostgreSQL, Angular, React, Node.js, and Laravel Vapor. An anchor review references REST API integration, wireframing, prototyping, and QA within a single end-to-end mobile delivery, confirming high-density technical capability.
Project management & delivery
StrongReviewers consistently report on-time or ahead-of-schedule delivery, with tools such as ClickUp, Trello, JIRA, and Kanban cited as active workflow instruments. One engagement delivered a complete mobile app within two months; a schedule sub-rating of 3.5 from one investment consultancy reviewer is the sole notable exception.
Communication & collaboration
StrongClients across multiple industries describe daily updates, virtual meetings, email, and WhatsApp as active communication channels. Reviewers from geographically dispersed locations, including the US, UK, Germany, and Switzerland, consistently note seamless remote collaboration and proactive responsiveness with no flagged communication breakdowns.
Reliability
StrongA mobile app launch was described as functional and error-free across App Store and Google Play, and one engagement noted the alpha phase was completed on time with no mistakes. No reviews cite post-launch instability or recurring defects, reflecting consistent delivery quality across a broad client base.
Client satisfaction & outcomes
StrongTangible outcomes include a 30% increase in demand post-launch for one electronics client and an app becoming the main source of leads for a software company. An anchor review confirms successful App Store and Google Play deployment with strong end-user reception, and the majority of clients report ongoing or renewed engagements.