Web app development cost for technology & saas

There is no single figure, and quoting one would be the least useful thing this page could do — the same pairing spans several-fold depending on scope, compliance and how many surfaces you ship. What this page gives you instead is what the pairing demands: the regimes that may apply, the systems of record you will be asked to integrate with, the device matrix and the release path. The calculator below is already fixed to Web and technology & saas — answer what is left and it returns a cost range, hours, timeline, team and running costs for your scope.

Because technology & saas brings its own obligations before you write a feature: SOC 2 Type II, GDPR, CCPA / CPRA may apply, you will be asked to integrate with systems like Stripe and Auth0 / Clerk / Cognito, and there are typically 6 distinct roles rather than one. The platform contributes its own separate costs — the device matrix, installers and code signing — and those are independent of the industry.

Yes, for equivalent functionality, and the gap is wider than the build figures suggest. One web codebase replaces two mobile ones, there is no store review in your release path, no commission on revenue, and you can ship a fix in minutes rather than waiting on review. You give up reliable push, offline behaviour and hardware access. If your product does not need those, web-first is both cheaper and faster, and you can add mobile later against the same backend.

A PWA closes part of the gap — installable, offline-capable, and on Android it can do push notifications properly. On iOS the story is weaker: push works only for home-screen-installed apps, background capability is minimal, and discovery through the App Store is absent. PWAs are a strong fit for business tools, internal software and markets where Android dominates. They are a poor fit for consumer products that depend on notification-driven engagement or on being found in a store.

Typically $30,000–$70,000 over the equivalent single-tenant product, and considerably more if you retrofit it. The cost is not a tenant column on your tables — it is that every query, cache key, background job, export and test must be tenant-aware, and that a single missed filter is a data breach rather than a bug. That raises your security and QA bar permanently. Design for it from the start even if you launch with one customer.

When a deal depends on it, not before — but design so you can. SAML SSO, SCIM provisioning, audit logs and role granularity total $80,000–$180,000 of engineering, and SOC 2 Type II adds $20,000–$45,000 in auditor fees on top of the evidence work. Building it speculatively is premature. Building your auth layer and data model so it can be added without a rewrite costs almost nothing and saves a painful quarter later.