Desktop 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 Desktop 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.

Electron is the pragmatic default: you ship one web codebase to Windows, macOS and Linux, and if you already have a web app much of it transfers. The costs are a 80–150MB binary and heavier memory use. Tauri produces far smaller, faster binaries using the system webview and is a strong choice for new work, at the price of a smaller talent pool and Rust in your stack. Go fully native — Swift or .NET — when performance, deep OS integration or platform-idiomatic feel is the product, as in professional creative and clinical tools.

A Windows OV certificate is roughly $200–$400 a year and an EV certificate $300–$700; without one, SmartScreen warns every user until you accumulate reputation. Apple requires a $99/year Developer Program membership plus notarisation, and an unsigned app simply will not launch. On top of the fees, budget 40–70 hours to build signing into CI, implement auto-update with rollback, and produce enterprise installers. This is the line item desktop estimates most often omit.

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.