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OpenSource Technologies Inc.
650 N Cannon Ave #229
Lansdale, PA 19446

Web Development Company in Pennsylvania And Beyond

With a reputation for quality and innovation, OpenSource Technologies (OST) is the web development company Philadelphia companies turn to for powerful web solutions. From dynamic corporate portals to complex web platforms, our solutions are guided by client vision, user behavior, and data-driven strategies. With our award-winning team based in Lansdale, PA, we leverage the latest web technologies and integrate AI to enhance functionality, automate processes, and improve user experience.We follow agile and lean methodologies, ensuring fast development cycles, total transparency, and full code ownership. As a web development company Philadelphia organizations trust, we prioritize clean architecture, SEO-friendly coding, and secure deployment practices. Whether you’re building a new platform or upgrading an existing one, OST delivers with precision and purpose.If you’re seeking a results-oriented web development company Philadelphia businesses can rely on for high-quality, future-ready websites, OST is your dedicated partner in innovation.

In & Around Philly

Mobile App Development Company Philadelphia

At OpenSource Technologies (OST), we are a leading mobile app development company in Philadelphia that transforms ideas into powerful, user-centric digital experiences. Whether you’re a startup, mid-sized company, or global enterprise, we specialize in building innovative mobile applications that blend strategic planning, intelligent AI integration, and creative UI/UX design. Our approach is both methodical and collaborative—clients bring us their ideas, and our experts in workflow design and product architecture turn those ideas into scalable, market-ready solutions.

As a trusted mobile app development company in Philadelphia, we’ve delivered successful solutions across industries—ranging from large-scale enterprise apps for KDD (Kuwait Danish Dairy), to investment tools for 27th Investment, to startup platforms like Instant Kosher and a Tattoo Studio booking system. Each project is carefully crafted with AI-driven features that enhance user personalization, automate workflows, and improve app performance.

Already have an app and want to make it smarter or more engaging? OST helped ScholarVets Network reimagine their mobile presence by redesigning the interface, improving user engagement, and adding mobile-friendly AI features that drive retention. As a forward-thinking mobile app development company in Philadelphia, we ensure your application is not just functional, but future-ready.
Mobile App Development Company Philadelphia
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Expert in Custom APP Development Company in Pennsylvania

As a leading Custom App Development Company in Pennsylvania, OpenSource Technologies (OST) specializes in designing, building, and maintaining software tailored to specific business needs. Our work spans startups to enterprises, with solutions crafted to match real-world workflows. For example, we developed internal investment and lead management software for 27th Investment, and created a logistics management system for Team Pex Logistics that handles packages, vehicles, and drivers—customized entirely to their operations.Our approach to custom development is structured and strategic. From requirements gathering and code construction to testing and deployment, every project is managed using proven methodologies such as Agile, Scrum, or Rapid Application Development. As a Custom Software Development Company in Pennsylvania, we also bring AI-powered features to the table—enhancing automation, enabling smart recommendations, and improving efficiency across the board.Whether it’s modernization, application management, or ground-up customization, our team stands out through our hands-on experience, attention to detail, and commitment to transparency. If you’re looking for a Custom App Development Company in Pennsylvania or a trusted Custom Software Development Company in Pennsylvania, OST delivers scalable, intelligent software solutions. Our customer-centric approach sets us apart from any other Custom App Development Company in Pennsylvania, especially when AI and innovation are top priorities.

Hire App Designer Near You

Looking to hire a custom software development company in Pennsylvania? OST is closer to you than you think! We are one of the best web development companies in Philadelphia. With us, you are sure of the best app designers.
App design involves the creation of a unique identity for a product or business. Our workflow experts and designers work with the client to understand the business personality, target market, and target audience. We brainstorm the facts and build the design of the App.

We provide high-end software app development in Pennsylvania. We pay close attention to the details when brainstorming or working with new ideas. The workflow expert listens carefully to what the client wants, and those ideas are edited, expanded, and presented to the client. The designer works from a brief stay within the budget, and works within the client’s deadline.

We worked on the Wesleyan user experience and increased traffic of OLIOLI after launching a new look.

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How OST Can Help You

How OST Can Help You

Have you had to evolve your online, mobile, or e-commerce strategies, but found your developer nowhere to be found, or at least not in the timely fashion you require? Has your development partner not responded to you quickly enough in the changing world of online security? Have you lost the maintenance and support required to advance your digital strategy?   Well, we hear you. Instead of giving you one solution and disappearing, the OST team steps in repeatedly to solve complex business challenges to get our clients where they want to be. Our customers stick with us because we stick with them. Our customers work with us because our experience in adaptive process influences business decisions so sustainably they never even think of finding another provider.   How do you have to evolve? How do you want to adapt? And what problems can we help you solve? Contact us, sales@ost.agency. Visit clutch.co and search for open source technologies to read testimonials.

How We Drive You

How We Drive You

Clients come to Opensource technologies with visions of creating effective web and mobile applications that solve business problems. Our teams nurture these visions into real and tangible products often bringing greater value to the application as a whole. Getting started we ask poignant questions critical to understanding how we all succeed. Sometimes these are hard questions to answer but collaboration is key to start.   OST follows a proven and effective three-stage development process and we won’t ever deviate from it. The whole reason we maintain a 100% success rate in delivering applications is because we follow these stages in order.   Stage 1 of the app life cycle begins with a wireframe mock-up design. This is the planning period for creating the best user interface in a very iterative process. We’ll map out the sitemap and navigational details specifically, how content and data will interact with users. This is the most important phase and provides everyone a clear picture before graphic design and development begin.   Stage 2 is where graphics and content are placed over the wireframe to provide the most visually appealing user interface. The OST design team will provide multiple iterations so the look is exactly what you want or better yet what the user wants.   In stage 3 development begins, OST will advise the right programming language and back-end database to meet the desired goals. We employ an agile development process so clients have regular knowledge of work in progress, a hosting and server.  Migration plan will also be provided to ensure a smooth transition for users of the application but before we launch and go live extensive testing and validation is performed on all internet browsers and ios and android devices.   But hey after that the application is all yours however that is not where the benefits of working with OST ends. Other value-added services can be layered on top making us the total package provider. We offer complementary bug support for 30 days. Some applications though require a quick response time and regular updates, in these cases OST offers monthly maintenance and support plans built to suit the application’s needs. OST’s digital marketing teams also help applications get found. Our Bing and Google certified experts are proficient in search engine optimization or seo and pay-per-click. We will craft a plan that suits your business needs and marketing budget. When partnering with OST our experienced team of advisors and technologists will help you plan for the present and future. Every application we’ve delivered follows a tried and true process and all were delivered on time and on budget. You can count on us to build a sound foundation a platform you can truly stand on when you want to go higher.

How We Fuel You

How We Fuel You

Every business has been forced to evolve and do so quickly and Opensource technologies has fueled the drive and ambition of business owners to adapt and overcome that means redesigning and enhancing web applications and e-commerce systems. It’s meant building mobile applications to communicate and drive brand loyalty with customers and prospects. It’s meant being the technical advisors for entrepreneurs who want to build the app of their dreams with someone they can trust. We speak your language, we build the roadmap, we simplify processes, we recognize ROI and how can we fuel you.

Our Customers Say

The client was impressed with the amount of options that the agency provided them. They were pleased with the response time and ability to make adjustments quickly. Just generally speaking, the client was happy with how friendly their team was.

Sergey Chernokov Application Support Specialist, Wesleyan College

Sergey Chernokov

Not only was the development team technically proficient, but they also fostered an empathetic understanding of project goals and potential use. Developers seamlessly incorporated feedback and fostered smooth and reliable communication, ultimately delivery a high-quality and useful product.

Tom Thelen CEO, NoBullyingSchools

Tom Thelen

The app developed by OpenSource Technologies Inc. has received positive feedback from users that have tested it. It’s available for download and waiting for its official launch. OpenSource Technologies Inc. meets deadlines and is responsive to the client, communicating through emails and Zoom calls.

Gina Co-Founder, PunchBugg

Gina

OpenSource Technologies Inc. was able to successfully bolster the client’s IT needs, much to their delight. The team’s workflow was highly effective, and internal stakeholders were particularly impressed with the vendor’s level of engagement and delivery agility.

Anonymous Deputy Director of Digital Comms, Bread for the World

Anonymous

The responsive website is attracting new clients to the business. The creative team at OpenSource Technologies Inc. is patient, accommodating, and detail-oriented. Their project management style is also noteworthy.

Shawn Sims COO, TrueVine Photography

 Shawn Sims

Through OpenSource Technologies Inc.’s efforts, users were able to effectively use the app’s functionalities. The backend was very high-quality. Their communication and ability to deliver on time was fantastic. They are very knowledgeable and understanding.

Pegaah Firozi COO, 27th Investment LLC

Pegaah Firozi

Hire a Custom Software Developer Near You

Founded in 2009, and highlighting 15+ years of experience, OST is a mobile app and custom software development company headquartered in Lansdale, Pennsylvania (USA). And we offer the best software app development in Pennsylvania.
OST specializes in embedded software, the Internet of Things, mobile applications, custom software development, software engineering for cloud platforms, and security programming. Business consulting, information technology, and outsourcing services are available to local clients and global customers through the local OST team and their specialists around the world.