Web application development in St. Louis

Start with how people will use the product. A web app suits work done at a desk or a tool shared by link. A mobile app is a better first choice when the core experience uses the camera, location or daily notifications. The choice affects which screens and interactions need attention first.

For a web app with a rich interface, Next.js and React with TypeScript give you one language across the front and back end. We build with that approach, using a stack such as Next.js, React, Node.js and PostgreSQL. Laravel, Rails or Django can fit when your existing team already works in PHP, Ruby or Python.

Managed platforms such as Vercel, Supabase or Firebase reduce setup and server upkeep. AWS or Google Cloud gives you more control and can cost less at scale, with more operations work. For sign-in and billing, established services remove substantial edge-case work; custom builds suit unusual pricing or strict data rules. We agree the feature list with you, and the same team handles design, development and launch.

For a business open to the public, US guidance says the ADA covers goods and services offered on the web and points to WCAG as helpful guidance. We design accessible flows and screens using that guidance, including clear navigation and keyboard access.

If your product sells subscriptions, Stripe is available for US businesses to accept payments. We set up subscription payments and plan for trials, upgrades, invoices, tax and failed card payments, so the billing flow covers more than the initial checkout.

Bring what you have; the discussion starts with the product and its users.

• Current alternativesList the competing products or tools people piece together, and what is missing from them.
• Existing assetsGather designs, prototypes, repositories, domain and hosting details, plus admin access to third-party accounts.
• Data constraintsNote what personal or sensitive data the product will hold and any security reviews your customers require.
• Existing codeFlag the parts that need attention so we can review the code and infrastructure before fixing them.
• Security risksNote any access-control or injection concerns you already know about; the OWASP Top 10 gives the review a starting point.

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  Leaving customer separation until later

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

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  Skipping staging and tested backups

  Keep a test environment and verify backups before releases, so mistakes do not immediately become live incidents.

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  Building every account and payment component from scratch

  Assess established services first, so budget goes towards the parts users notice.

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  Launching without product analytics

  Track sign-ups, activation steps and feature use from the first release, so decisions are based on usage.