Desktop app development cost for e-commerce & retail

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 e-commerce & retail — answer what is left and it returns a cost range, hours, timeline, team and running costs for your scope.

Because e-commerce & retail brings its own obligations before you write a feature: PCI DSS, ADA accessibility, CCPA / CPRA may apply, you will be asked to integrate with systems like Stripe and Shopify, 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.

Use a platform unless you have a specific reason not to. Shopify plus a headless front end covers what most stores need, and it absorbs PCI scope, tax calculation and fraud screening. Build custom when your pricing, bundling or fulfilment logic cannot be expressed in a platform, when you are running a marketplace rather than a store, or when the buying experience itself is your differentiator. A common middle path is a platform for commerce plumbing and a custom app for the experience.

Against an existing web store, native apps typically add 50–70% rather than doubling cost, because the catalogue, cart, orders, payments and admin already exist — you are paying for client surfaces and store distribution. What you get is push notifications that actually reach people, saved payment with biometric confirmation, and better repeat-purchase behaviour. For a store with meaningful repeat purchase it is usually worth it; for a considered one-off purchase it usually is not.