Custom Web App Development Services

Our flexible, out-of-the-box can developers create solutions that are not only tailored to your needs, but which also integrate seamlessly with your existing internal systems.

Project approaches

Front-end

Our team can develop the front end user interface of your website or web app and integrate it with your existing backend and API.

Front-end + Backend

When you need to develop a backend solution to support your mobile app, our backend engineering team is ready to help.

Admin Panel

We design and develop easy-to-use admin panels for mobile and web apps, using popular UI solutions that are reliable and easy to support and extend.

Project Stages and Flow

Depending on your current project stage, Diffco can suggest the most effective plan to archieve your goals, or launch a new version that your users will love.

01

Discovery Stage

We will ensure your project’s success with careful planning. We start each development process with a four-step discovery stage, in which our team collaborates with you to align functionality, performance, and design. We work with you on strategy, prioritize your business needs and goals, and define your budget and deadlines before we get to work.

02

Design Stage

After developing a clear plan of action for your project, our product design process begins. Using a collection of industry-proven techniques and tools, we work to optimize your application’s usability, success, and efficiency, without compromising on scalability.

03

Development Stage

We collaborate with you on the multiple stages of your backend development project, with a product that evolves across multiple releases, including an MVP (Minimum Viable Product) for rapid release. We use Agile methodology, focused on short sprints, and run the development stage in parallel with mock-ups, wireframes, and documentation.

04

Ongoing Support and Maintenance

Following the release of the MVP, our team will engage in ongoing sprints to rapidly develop improved releases with additional functionality and features. This includes updating third-party backend components to the latest versions and implementing security updates. We support and maintain your backend system on your behalf, so you can focus on growing your business.

Development formats and billing

Time & Materials

For outsourced software development, a time-and-materials (T&M) approach saves you money—and produces better results—than a fixed-price contract. That’s because the best software requires flexible thinking, tweaks to requirements, and shifts in scope. And because with fixed-price estimates, you always overpay for risk contingencies that you probably won’t need. Read our blog for a full analysis.

Agile

Agile software development involves a series of short sprints to ensure rapid, transparent progress toward your product goals. We apply this nimble, responsive approach to incorporate your feedback, adjust priorities as needed, and ensure your approval at every step. We use the Agile best practice because it is more flexible—and less risky—than the linear Waterfall development methodology.

Analytics and product optimization

To add greater value to your business, we use analytics to refine your product and maximize your return on investment. We make data-driven decisions on UI/UX impact, content, and process flow. And we can help your marketing team maximize conversions, revenue, and profits. Our engineers integrate your goals and metrics to build conversion funnels, going far beyond simple tracking pixels.

UI/UX Designers

A great web app starts with great user interface and experience. Because this is the part of the app your users will interact with, UI/UX designers pay attention to matters such as the site’s appearance (colors, fonts, logos, buttons, layout, graphics), content (text, copy), navigation (menus, links), and user experience (usability, intuitiveness).

Front-end Developers

Front-end developers are responsible for the outward-facing look and feel of your custom web applications. They create a web service that is both attractive and easy to use for customers and clients. Our front-end developers are skilled in JavaScript and TypeScript, and well-versed in frameworks and front-end architecture and coding standards. With their knowledge and experience—and savvy application of responsive web design technologies—they can ensure that your web app solutions look good and are a pleasure to navigate no matter what device your users prefer (desktop, laptop, tablet, phone).

Back-end Developers

Anyone who lives in a house or apartment building knows that there’s more to the structure than meets the eye. While the walls, windows, and roof are what we first see, they don’t hold themselves up. There’s a lot going on under the surface to hold the entire structure together. The back end of a custom web application needs a solid infrastructure and well-crafted application holding it together behind the scenes. Back-end developers are responsible for building the structures that will make your outward-facing website (and its functions) possible. These include: Software codes Servers infrastructure Databases Application Programming Interfaces (API’s) CI/CD pipelines Back-end developers are experienced in popular backend languages (such as PHP, Node.js, and Python) and in the principles and architectures of building backend software. With their skills, our back-end developers ensure that all systems the front-end developers have created are properly supported and are integrated with all your internal systems and programs.

Full-Stack Developers

As their title indicates, full-stack developers are comfortable with the intricacies of both front-end and back-end development. These cross-disciplinary developers can move comfortably from working on client-facing applications to server-facing integrations, plus everything in between. Full-stack developers use most existing front-end and back-end languages and can therefore work on the UI and back-end functionality of the site at any level. They may float between back-end and front-end teams to fill in as needed during development. They can mediate backend and frontend teams, integrating designing and implementing the most effective integration between the two sides. Full-stack developers have the knowledge and expertise to follow the entire flow of the user experience and track any potential problems back to their source, solving them quickly and efficiently.

Full-stack developers use most existing front-end and back-end languages and can therefore work on the UI and back-end functionality of the site at any level. They may float between back-end and front-end teams to fill in as needed during development. They can mediate backend and frontend teams, integrating designing and implementing the most effective integration between the two sides. Full-stack developers have the knowledge and expertise to follow the entire flow of the user experience and track any potential problems back to their source, solving them quickly and efficiently.

Let’s build something great together

We believe in turning ideas into reality and we're ready to join your journey. Reach out to us and let's start discussing your project.