Custom Web Application Development Built for workflows off-the-shelf cannot handle.
Bespoke web applications that solve specific business problems off-the-shelf software cannot. SaaS, internal tools, customer portals, B2B platforms, data dashboards. Shipped in 8 to 20 weeks. USD pricing.
We tell you whether your build needs a custom web app or whether off-the-shelf software plus customisation would be cheaper.
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Who we've built for.
How we work on custom web applications
- What we build
- SaaS apps · Internal tools · Customer portals · B2B platforms · Data dashboards · Workflow apps
- Stack
- Next.js · React · TypeScript · Node.js · Python · PostgreSQL · AWS · Stripe · OpenAI
- Compliance-ready
- GDPR · SOC 2 Type II · ISO 27001 · HIPAA architecture where required
- Integrations
- Salesforce · HubSpot · Slack · Microsoft 365 · Google Workspace · Stripe · Twilio · any REST or GraphQL API
- Pricing in USD
- Web app MVP from $11,000 · Production web app from $38,000 · Custom platform from $55,000
- Output
- Production web app · CI/CD pipeline · staging environment · runbook · dual on-call cover
Off-the-shelf software cannot solve every problem. When your workflow is unique, your data model is bespoke, or your integration set is unusual, custom web applications win on cost-of-ownership and time-to-value. This page covers what we build, the stack we use, what every use case typically costs, and how to know when a custom build is the right call.
Recent custom web app builds
SaaS, portals, and workflow apps shipped for product teams.
Consumer tax-planning MVP with calculation engine and onboarding flows.
Read case study →
AI-assisted legal contract analysis with citation and review workflows.
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Regulated fintech workflow with CRM and partner integration.
Read case study →What we build
SaaS web applications
Multi-tenant, multi-user, subscription billing, role-based access. Typical clients: vertical SaaS founders, B2B startups, scaling Series A–B teams.
Internal tools and operations apps
Replace Google Sheets, Airtable, or a legacy internal app with a proper application. Sign-on via Google Workspace or Okta. Often integrates with your CRM, ERP, or data warehouse.
Customer portals and self-service
Customer-facing surfaces for billing, document access, support, in-app messaging. Common in fintech, healthcare, and B2B SaaS verticals.
Data dashboards and reporting
Custom analytics over your warehouse (Snowflake, BigQuery, Redshift). Real-time dashboards, scheduled reports, embedded analytics for customers.
Workflow and approval apps
Multi-step approval workflows, document collection, e-sign, audit trail. Common in legal, fintech, and procurement use cases.
Related capabilities: Custom software development, Full stack development, Progressive web apps, B2B development, B2C development, AI-powered software, API integration, Cloud & DevOps.
Use cases with cost ranges
B2B SaaS web application
Multi-tenant SaaS with auth, billing, role-based access, admin panel, customer dashboard. Stripe Billing for subscriptions. Common verticals: vertical SaaS for restaurants, healthcare, real estate. Typical build 12 to 16 weeks. Range $38,000 to $55,000 depending on workflow count and integration depth.
Internal RevOps or sales operations tool
Custom dashboards over your CRM (Salesforce, HubSpot) plus data warehouse (Snowflake, BigQuery). Workflow automation. Sign-on via Google Workspace or Okta. Typical build 8 to 12 weeks. Range $11,000 to $38,000 depending on integration count.
Customer-facing portal
Auth, billing, document delivery, in-app messaging, support integration. Often connects to your CRM and support stack. Typical build 10 to 16 weeks. Range $11,000 to $38,000 depending on integration depth and customisation.
Custom data dashboard for embedded analytics
Customer-facing analytics over your warehouse. Real-time updates via materialised views. Filtering, drill-down, export. Embedded in customer dashboards. Typical build 8 to 12 weeks. Range $11,000 to $38,000 depending on data volume and chart complexity.
How we run the build
Five-phase rhythm for custom web app builds. Same SDLC discipline as larger Custom Software engagements.
- Discovery and scope (1 to 2 weeks). Stakeholder interviews. User research. ADRs. Output: scoped milestones and tech stack confirmed.
- Design and architecture (1 to 2 weeks). UI designed in Figma. Database schema. API surface. Auth model. Output: design system plus architecture diagram.
- Build (5 to 12 weeks). Two-week sprints. Demo every sprint. Test coverage gate of 70 percent on critical paths. Integration tests against staging.
- Hardening (1 to 2 weeks). Performance testing. Security review. Accessibility audit (WCAG 2.2 AA). Edge-case testing.
- Launch and dual on-call (1 week plus 2 weeks). Production deploy with feature flags. Monitoring. Dual on-call. Runbook delivered.
Tech stack
Default web application stack. Each layer chosen for production reliability, security, and ongoing operability.
- Front end. Next.js with TypeScript and Tailwind CSS. shadcn/ui or Radix UI component library. WCAG 2.2 AA accessibility baseline.
- Back end. Node.js (Fastify or Hono) for general workloads. Python (FastAPI) for ML, data engineering, or scientific compute. Stateless services behind API gateway.
- Data layer. PostgreSQL via Supabase, Neon, or RDS. Drizzle ORM or Prisma. Redis for cache and session. Background jobs via BullMQ or Sidekiq.
- Auth. Clerk, NextAuth, or Auth0 for B2B. Custom OIDC for enterprise SSO. SCIM for user provisioning where required.
- Integrations. Salesforce, HubSpot, Slack, Microsoft 365, Google Workspace, Stripe, Twilio, plus custom integrations via REST or GraphQL API.
- Observability. Sentry for errors. Datadog or Grafana for metrics. Audit log for every regulated-data read and write.
- Cloud. AWS or Vercel for production. Multi-region where the build requires. Terraform-managed infrastructure.
Regulated workloads and compliance-ready architecture
HIPAA, PCI DSS, SOC 2 Type II, and GDPR architecture from day 1 where the build requires it. Audit-evidence collection wired in. We do not issue audit certificates; we deliver evidence your audit firm can use.
Pricing
Web app MVP
From $11,000
- Single workflow, auth + payments, single tenant.
- 8 to 12 weeks.
Production web app
From $38,000
- Multi-workflow, multi-role, 2 to 4 integrations.
- 12 to 18 weeks.
Multi-tenant B2B web platform
From $55,000
- Per-tenant isolation, per-tenant theming, billing tiers.
- 14 to 20 weeks.
Customer portal
From $11,000
- Auth, billing, document delivery, messaging, support integration.
- 10 to 14 weeks.
Custom data dashboard
From $11,000
- Real-time analytics over warehouse with embedding-grade auth.
- 8 to 12 weeks.
Maintenance retainer
From $2,200 / mo
- On-call cover, dependency upgrades, small features.
FAQ
A custom web application is bespoke software accessed through a browser, built to solve a specific business problem off-the-shelf software cannot address. Custom web apps differ from websites in that they handle data, workflows, and user interactions, not just static content delivery.