We develop and maintain custom web applications for startups, enterprises and tech teams. We specialize in top-tier development using Ruby on Rails, Python, Node, PHP and React.
We’ve worked on a variety of projects with a wide range of clients, each with a unique problem set and perspective. We continually improve our process and do our best work in strong partnerships with our clients.
* Technology stack in tune with modern trends in software development— Ruby on Rails, Python, Node, PHP, Wordpress, Shopify, Laravel and React.
* Project management—order, transparency, and safety. To ensure flawless work process, we combine the best of Waterfall and Agile methodologies and provide continuous support, maintenance, and assistance for your project. To protect the data you entrust us with, we use secure VPNs and legally binding NDAs.
Our dedicated business advisors will be happy to talk over the details of your project.
You’ll be working with a small, dedicated team built to fit the needs of your project. Each team works on one project at a time to stay focused. We use tools like Trello, Slack and GitHub to communicate frequently.
We develop and maintain custom web applications for startups, enterprises and tech teams. We specialize in top-tier development using Ruby on Rails, Python, Node, PHP and React.
We’ve worked on a variety of projects with a wide range of clients, each with a unique problem set and perspective. We continually improve our process and do our best work in strong partnerships with our clients.
* Technology stack in tune with modern trends in software development— Ruby on Rails, Python, Node, PHP, Wordpress, Shopify, Laravel and React.
* Project management—order, transparency, and safety. To ensure flawless work process, we combine the best of Waterfall and Agile methodologies and provide continuous support, maintenance, and assistance for your project. To protect the data you entrust us with, we use secure VPNs and legally binding NDAs.
Our dedicated business advisors will be happy to talk over the details of your project.
You’ll be working with a small, dedicated team built to fit the needs of your project. Each team works on one project at a time to stay focused. We use tools like Trello, Slack and GitHub to communicate frequently.
AI Overview
Performance snapshot
Square63 presents a consistently strong performance profile across a broad range of web and mobile development engagements, predominantly serving small to mid-sized startups and technology companies. The vendor earns high marks across all five evaluation categories, with recurring praise for technical depth in Ruby on Rails, responsiveness, and cost-effectiveness. No systemic weaknesses emerged across the reviewed data, though isolated mentions of UX/UI limitations and early-stage process hiccups prevent a fully unblemished record. The review base is notable in volume but skews heavily toward 2017–2020, with only one recent anchor review from 2024.
Performance breakdown
Technical expertise
StrongMultiple reviews confirm deep proficiency in Ruby on Rails, React, AngularJS, MongoDB, AWS Lambda, and iOS/Android development. A 2024 anchor review cites over 60% reduction in AWS Lambda costs, demonstrating measurable technical impact with named technologies.
Project management & delivery
StrongClients consistently report on-time or ahead-of-schedule delivery, including one case four weeks ahead of plan and another platform delivered ahead of schedule and within budget. One early review noted slower-than-desired pace managing multiple simultaneous priorities, but this was not a recurring theme.
Communication & collaboration
StrongCommunication is among the most frequently praised attributes across all platforms, with clients highlighting proactive updates, cross-time-zone availability, and responsiveness within one business day. One minor mention of early miscommunication exists but was quickly resolved.
Reliability
StrongReviewers repeatedly describe the team as reliable, bug-responsive, and consistent across long-term engagements spanning multiple years. The 2024 review confirms sustained quality and responsiveness, and a SaaS client specifically cited reliability as a defining asset.
Client satisfaction & outcomes
StrongTangible outcomes include a 75% decrease in page load times, over 60% reduction in AWS costs, significant growth in subscription and user rates post-Android launch, and an app reaching 450 users with 10,000+ API events. Cost-to-quality ratio is rated favorably across nearly all engagements.
Best for
Square63 is best suited for startups and small technology firms seeking reliable, cost-effective Ruby on Rails and full-stack development, particularly for MVP builds, platform redevelopments, and ongoing staff augmentation engagements.
Clients info
Square63 primarily serves small technology startups, SaaS companies, and fintech firms, with a notable presence in fitness, homecare, agriculture, and media. Most clients fall in the 1–50 employee range, with project budgets typically between $10,000 and $199,999. A small number of mid-sized companies with 51–200 employees are also represented. Primary industries represented include Information Technology, Financial Services, Arts, Entertainment & Music, Health & Homecare, Agriculture & Trading. Typical client size bands include 1–10 Employees, 11–50 Employees, 51–200 Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, $50,000 to $199,999.
Review strength
The assessment is based on 24 reviews drawn from two platforms. The majority of reviews were published between 2017 and 2020, making most of the data more than four years old. Only one review is recent, dated April 2024, which limits the ability to fully assess current performance trends. Review date range: Apr 28, 2015 - Apr 2, 2024.
Performance breakdown
Technical expertise
StrongMultiple reviews confirm deep proficiency in Ruby on Rails, React, AngularJS, MongoDB, AWS Lambda, and iOS/Android development. A 2024 anchor review cites over 60% reduction in AWS Lambda costs, demonstrating measurable technical impact with named technologies.
Project management & delivery
StrongClients consistently report on-time or ahead-of-schedule delivery, including one case four weeks ahead of plan and another platform delivered ahead of schedule and within budget. One early review noted slower-than-desired pace managing multiple simultaneous priorities, but this was not a recurring theme.
Communication & collaboration
StrongCommunication is among the most frequently praised attributes across all platforms, with clients highlighting proactive updates, cross-time-zone availability, and responsiveness within one business day. One minor mention of early miscommunication exists but was quickly resolved.
Reliability
StrongReviewers repeatedly describe the team as reliable, bug-responsive, and consistent across long-term engagements spanning multiple years. The 2024 review confirms sustained quality and responsiveness, and a SaaS client specifically cited reliability as a defining asset.
Client satisfaction & outcomes
StrongTangible outcomes include a 75% decrease in page load times, over 60% reduction in AWS costs, significant growth in subscription and user rates post-Android launch, and an app reaching 450 users with 10,000+ API events. Cost-to-quality ratio is rated favorably across nearly all engagements.