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Custom Application Development Services

Custom application development services on a budget

Over the last 10 years, we have helped 20+ clients build custom web and mobile applications. As a top-notch custom application development services company, our focus is on ROI and delivering real value to you. We build MVP to enterprise-grade applications using JavaScript technologies.

Experienced developers
Cost-effective solutions
Mark Flores

❝ The JavaScript Shop delivered an outstanding application for our ed-tech platform. Their team was highly professional and delivered the project on time. ❞


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Custom Software Application Development Services Portfolio

Discover our diverse and innovative portfolio of Custom Software Application Development Services, where creativity meets functionality. Explore a rich tapestry of bespoke web solutions that exemplify our expertise, and envision the possibilities for your next digital endeavor.

One of the largest analytics platform for the Government of India

As a Web App development company, we specialize in using advanced JS libraries to represent data in a meaningful way. We collaborated with a CMM level 3 company to build a platform for the Government of India to analyze data from various sources and visualize it in a meaningful way. The platform is used by various ministries and departments of the Government of India to make data driven decisions.

  • Engagement Duration: 2 years
  • Technologies Used: React, Plotly Visualizations, Python, Postgres, AWS Redshift, Vector DB, ElasticSearch DB, Redis, AWS Cloud for hosting and other AWS Services.
One of the largest analytics platform for the Government of India

SaaS Company

We built our own B2B SaaS product which helps other SaaS companies to manage their customer feedback and feature requests in a very organized and structured way. The highlight of the product was it was built ground up in less than 1 month.

  • Engagement Duration: 1 month
  • Technologies Used: React, NodeJS, MongoDB, GCP, Vercel
  • Team Size: 1
  • Hardest Challenge: Build and launch the product in record time.
SaaS Company

Philosophy and Methodology for our Custom Application Development Services

Rooted in a decade of experience, our custom application development services philosophy is a harmonious blend of first principles thinking and our unique approach. This software development process ensures that your project is delivered on time and within budget.

Event-Driven Architecture

Event-Driven Architecture

Embrace an event-driven philosophy where your custom web app responds to and triggers events, ensuring real-time updates and efficient data flow. Hire custom application development services from us who excel in designing event-driven systems to enhance user experiences.



Adopt a microservices approach, breaking down the application into smaller, independently deployable services. Our web app development services specialize in designing and building modular, scalable microservices architectures, promoting flexibility and growth.

User-Centric Design

User-Centric Design

Prioritize user-centric design principles at every stage of development. Our web app development team focuses on creating intuitive and visually appealing interfaces, ensuring that user needs drive the development process.

Continuous Improvement

Continuous Improvement

Commit to continuous improvement. We offer web app development services that promote Agile collaboration and DevOps practices, enabling iterative development, rapid deployment, and ongoing enhancements.

Scalability & Reliability

Scalability & Reliability

Build for scalability and reliability. Our web app development experts design systems that scale seamlessly with demand, and our services ensure high availability and load balancing to guarantee uninterrupted user experiences.

AI-Powered Features

AI-Powered Features

Harness the potential of AI to enhance your web app's capabilities. Our web application development services leverage artificial intelligence to provide predictive analytics, personalization, and automation, creating intelligent, data-driven solutions.

Interactive Chatbots

Interactive Chatbots

Enhance user engagement with interactive chatbots. Our custom business software development approach integrates chatbot functionality into your new application, enabling seamless communication and support services, providing a conversational user experience.

Data-Driven Insights

Data-Driven Insights

Emphasize data analytics for actionable insights. Our web app development philosophy incorporates robust data analytics to empower data-driven decision-making, allowing you to uncover hidden trends and customer satisfaction.

Hire Custom Web App Agency in India: Some Statistics

Over the last 10 years we have collaborated with 80+ clients and have seen the impact of our work on their business. Here are some statistics on hiring The JavaScript Shop developers vs hiring freelancers vs hiring locally in the USA. .

ParametersIn-House (United States)logoFreelancer (USA)
Salaries$200,000 60-70% lowerHigher
Skill LevelSkilledSkilled and cost-effectiveVaried
Benefits & 401KAdditional costManaged by TJSHigh salary covers this
Recruitment Costs10-20% Managed by TJSHigh and not scalable
Time to hire3 months1 Week1-3 months
OverheadOffice space, UtilitiesManaged by TJSMinimal
Taxes & ComplianceComplex and costlyManaged by TJSMinimal
Project ManagementIn-house supervisionManaged by TJSVaried
Training & OnboardingTime-intensiveManaged by TJSMinimal
InfrastructureEquipment, software, licensesManaged by TJSMinimal
TimezoneIdeal4 hours overlap with PSTVery easy
Part time niche expertiseNot availableAvailableNot available
Diverse industry experienceNot availableAvailableNot available

Have questions about hiring custom app development resources from us?

Still thinking about whether we are the right fit to hire custom app developers or hire an entire custom app team in India from us? We have answered some of the most common questions below. If you have any other questions, please feel free to reach out to us.

Why is our company called The JavaScript Shop?

We are JS pros and it is our go-to stack. Our semi-automated dev process generates JavaScript/TypeScript code. But we have over the last 2 years expanded into python and google go for microservices and performance-intensive tasks.

How does your typical engagement work in case of custom application development services?

We start with a 1-2 week trial where we build a small part of your product. If you like our work, we continue working on the product until it is done. We work in 2 week sprints and deliver working software at the end of each sprint. Our process ensures effective communication throughout the dev cycle, using tools like Slack, Jira, and GitHub. You can stop at any time.

How much times does it take to hire a custom app team?

We can start working on your project within 1 week. We will need access to your codebase and a list of tasks that you want us to work on. We will also need to setup a video call with your team to introduce ourselves and to get to know each other.

What will happen to my IP?

You will own all the IP that we create for you. We will sign a contract that transfers all the IP to you. We will also sign a non-disclosure agreement (NDA) to ensure that your IP is protected.

How do I get ongoing support for my app?

We offer ongoing support and new feature development for your app.