Web App Development Services

The honest answer is that cost depends on what your application actually needs to do, how many systems it needs to integrate with, and what compliance requirements it must meet. Here are transparent indicative ranges.

• Simple web apps and MVPs ($15,000 – $50,000) cover authentication, basic CRUD functionality, a clean UI, one or two integrations, and a reporting dashboard. Right for validating a product concept or replacing a single manual workflow. Typical delivery: 6–12 weeks.
• Mid-complexity web applications ($50,000 – $180,000) include custom business logic, multi-role authentication, payment processing or API integrations with third-party services, advanced UI/UX, and a robust data model. This is the most common range for teams building their core operational platform or commercial product. Typical delivery: 3–6 months.
• Enterprise web applications ($180,000 – $500,000+) involve microservices architecture, complex ERP/CRM integrations, compliance-by-design (HIPAA, PCI-DSS, SOC 2), AI components, and phased delivery across multiple engineering tracks. Typical delivery: 6–14 months.

We provide a transparent, itemized estimate after a free discovery call. Get a free estimate →

Simple MVPs: 6–12 weeks

Mid-complexity applications with custom UX and integrations: 3–6 months

Enterprise applications with compliance and multi-system integration: 6–14 months

Legacy modernization varies considerably by system complexity.

During discovery, we provide a milestone-based delivery roadmap with sprint-level visibility, so you know exactly what is being built, when, and at what cost before development begins.

A website delivers content, marketing pages, blogs, corporate information. A web application processes user input, executes business logic, manages authentication and user state, handles transactions, and integrates with backend systems and external APIs. If users log in, create or edit records, submit forms that trigger workflows, or manage data, it is a web application. Examples include SaaS platforms, customer portals, eCommerce engines, EHR systems, and operational dashboards.

We are technology-agnostic. The right stack depends on your project requirements, existing systems, team's technical capability, and growth trajectory. Common frontend choices: React, Angular, or Next.js. Common backend choices: Node.js, .NET Core, Python, or Java Spring Boot. For cloud, we work across AWS, Azure, and GCP. For AI, we use LangChain, RAG architectures, and Azure AI. We recommend the stack during discovery, not before we understand what you're building.

Yes. We start with a technical audit documenting your current architecture, identifying performance bottlenecks, security vulnerabilities, and dependency risks, then recommend a phased migration path. We use strangler fig patterns and incremental modernization to keep your production environment live throughout, no big-bang rewrites, no forced downtime windows. Common modernization projects include .NET Framework to .NET Core, monolith-to-microservices decomposition, and older Java or PHP systems moving to cloud-native architectures.

Yes. All web application clients receive 60 days of complimentary post-launch support covering bug resolution and deployment monitoring. Beyond that, we offer structured maintenance plans covering security patches, dependency updates, performance optimization, feature development sprints, and SLA-backed monitoring. The engineers who built your application handle ongoing support, meaning fast resolution with full context, no knowledge transfer overhead, and no starting from scratch with a new team.

We embed AI capability into the application architecture from day one rather than building it as a separate interface. This includes LLM API integration, RAG-based document retrieval over your private data, ML model deployment via inference APIs, and agentic workflow automation. We design all new web application APIs to the Model Context Protocol (MCP) standard, making your application immediately accessible to AI agents and automation tools. We also assess existing applications for AI readiness and recommend integration approaches that don't require a full rebuild.

Radixweb has 26+ years of engineering experience, 650+ engineers across every discipline, 4,500+ applications delivered across 30+ industries, ISO 27001:2022 and ISO 9001:2015 certified, SOC 2 compliant, and a 97% client retention rate. We build web applications that run in production for years without requiring emergency rework for clients across the USA, UK, Canada, Australia, and the Middle East. We combine deep technical capability with genuine domain knowledge and transparent delivery practices, for teams that need a partner, not just a vendor.