Web application development in New York City

Start with a web app if people will use your product at a desk or share it by link. A mobile app first is a better fit when the main task depends on the camera, location or daily notifications. The choice affects which experience you need to design and maintain first, so look at the task users need to complete before choosing a platform.

For a web app with a rich interface, React and Next.js with TypeScript offer a way to use the same language across the front and back end. We build in TypeScript across the front end, back end, database and APIs, using a stack such as Next.js, React, Node.js and PostgreSQL. Laravel, Rails or Django may fit a team that already works in PHP, Ruby or Python.

Hosting and data storage are separate choices. A managed platform reduces setup and server upkeep; running directly on a cloud platform gives you more control but adds operations work. A shared customer database is simpler to run, while a separate database for each customer suits enterprise requirements for isolation or data location.

For a business open to the public, US accessibility guidance covers services offered on the web and identifies WCAG as helpful guidance. We use that guidance when designing and reviewing the screens your customers use, so accessibility is part of the interface work.

A US business can sign up to accept payments with Stripe. If Stripe fits your subscription model, we set up subscription payments as part of the product, with the account and billing flow considered alongside the screens customers use.

Bring what you have, along with your view of the work the product needs to do.

• Current toolsList the competitors or tools users piece together today and what each one lacks.
• Pricing modelConsider per-seat, usage-based or flat plans; the choice shapes billing and permissions.
• Existing assetsGather designs, prototypes, repositories, domains, hosting and third-party accounts, with admin access.
• An existing productTell us about the codebase and infrastructure if you want us to take over its development.
• Admin needsNote who needs to manage users, adjust plans, answer account questions or switch features on and off.

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  Leaving customer data separation until later

  Design it into the first version of a multi-customer product to avoid a risky rewrite.

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  Assuming payment events arrive once and in order

  Set up webhook handlers to skip events already processed and work without relying on their order.

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  Building every account and billing component from scratch

  Consider proven services for sign-in, payments and permissions before spending the budget on those parts.

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  Launching without product analytics

  Track sign-ups, activation steps and feature use from the first release, so your team has evidence for its next decisions.