From Idea to Launch: The Web App Development Process

Building a web app from scratch involves more than coding. Discovery, design, development, testing, and launch — each phase has clear deliverables and decisions. Here's the process we use and what you can expect.

Table of Contents

• Phase 1: Discovery
• Phase 2: Design
• Phase 3: Development
• Phase 4: Testing
• Phase 5: Launch
• Typical Timeline
• Frequently Asked Questions

Phase 1: Discovery

Before writing code, we align on goals, users, and scope. Discovery typically takes 1–2 weeks and includes:

• Stakeholder interviews — understand business goals, pain points, success metrics
• User research — who are the users? What do they need to do?
• Requirements document — features, priorities, must-haves vs nice-to-haves
• Technical assessment — integrations, compliance, constraints
• Scope and estimate — fixed-price quote or phased approach

Phase 2: Design

Design defines the user experience and visual direction. We produce:

• User flows — how users move through the app
• Wireframes — layout and structure (low or high fidelity)
• UI design — visual design, components, design system
• Prototype — clickable prototype for validation

Phase 3: Development

Development happens in sprints (usually 2 weeks). We build in this order:

• Foundation — auth, database schema, API structure
• Core features — main workflows first
• Secondary features — supporting functionality
• Integrations — third-party APIs, existing systems
• Polish — edge cases, performance, accessibility

Phase 4: Testing

Testing runs throughout development and intensifies before launch. We use:

• Unit tests — critical business logic
• Integration tests — API and database
• E2E tests — key user flows
• UAT — user acceptance testing with your team
• Security review — auth, data handling, compliance

See our E2E Testing guide and Testing Strategies for more detail.

Phase 5: Launch

Launch includes deployment, data migration (if applicable), and handover:

• Deploy to production — staging → production with rollback plan
• Data migration — if replacing an existing system
• User training — docs, walkthroughs, support
• Handover — code, credentials, documentation
• Post-launch support — bug fixes, monitoring

Typical Timeline

MVP: 8–12 weeks. Full product: 4–6 months. See our Timeline guide for breakdown by project type.

Frequently Asked Questions