# Desktop Apps > Cross-platform desktop apps for Windows, macOS and Linux. Modern business tools with offline mode, automatic sync and signed updates. Free quote in 12h. Page: https://eldev.fr/en/services/desktop-apps/ · Version française: https://eldev.fr/services/applications-bureau/index.md · [Home](https://eldev.fr/en/index.md) We develop cross-platform desktop applications for Windows, macOS and Linux. Business tools, management software and specialized applications with [modern, responsive interfaces](https://eldev.fr/en/services/ui-ux-design/index.md). Using Electron or Tauri, we create software that combines the power of a native application with the latest [web technologies](https://eldev.fr/en/services/web-development/index.md). Offline mode, [cloud sync](https://eldev.fr/en/services/hosting-infra/index.md), automatic updates: your teams get reliable professional tools wherever they are. ## Capabilities ### Cross-platform Single development for Windows, macOS and Linux with Electron or Tauri. Reduce costs while ensuring a consistent experience across all operating systems used by your teams. ### Business tools Management software, lightweight ERPs and custom productivity tools. We build applications tailored to your business processes that replace spreadsheets and automate repetitive tasks. ### Modern interface Responsive and smooth interfaces meeting current standards. Modern design, polished animations and ergonomics designed for intensive daily use without visual fatigue. ### Offline mode Full functionality without internet connection with automatic sync when back online. Your data stays accessible and your teams stay productive, even on the go or in low-connectivity areas. ## Who is this service for? A web app won't cut it, your project needs a real installed application, reliable offline and close to the system. - Business that needs a locally installed tool: production management, data entry software, internal dashboard with no cloud dependency - Application that must work in dead zones, on [construction sites](https://eldev.fr/en/sectors/trades-construction/index.md), on an isolated industrial network, or without a guaranteed internet connection - Project requiring direct hardware access: thermal or label printer, industrial camera, barcode scanner, serial or USB port - Organisation looking to modernise legacy Windows software (VB6, Delphi, WinForms) or port it to macOS and Linux without starting from scratch ## How it works. Together we define the key features and ergonomics of your application. Development follows an iterative cycle with test builds on each OS. The app is delivered with an automatic update system. ## What makes the difference. Desktop apps that rival native software in performance and ergonomics. A single investment to cover Windows, macOS and Linux. ## Frequently asked questions. ### Electron vs Tauri: which should I choose? Both let you build cross-platform desktop apps from web technologies, but their philosophies differ. Electron bundles Chromium and [Node.js](https://eldev.fr/en/technologies/nodejs/index.md) inside the binary, it's mature, very well documented, and backed by a vast ecosystem (VS Code, Slack, and Figma all run on it), but binaries weigh 80–150 MB and memory usage is significant. Tauri (Rust + the system's native WebView) produces binaries 5–10x lighter, with lower memory overhead and a smaller attack surface, ideal when performance or distribution on low-spec machines is critical. For an internal tool with no size constraints, Electron speeds up development. For a public release or embedded software, Tauri is often the right call. We help you decide during the scoping phase. ### How much does a custom desktop app cost? Budget depends on the functional scope and integrations: a simple internal tool, a full business app with local database and hardware access, and a legacy Windows migration are very different projects. Publishing to the Apple Developer Program and Microsoft Store also involves procedural fees specific to each store. Every quote follows a detailed brief, [contact us](https://eldev.fr/en/contact/index.md) for an estimate within 12 hours. ### How do automatic updates work? Silent updates are built in from day one. With Electron, we use electron-updater (Squirrel-based): the app checks for a new version on startup from your server or an S3 bucket, downloads it in the background, and prompts a restart without interrupting the user's work. Tauri ships its own updater with cryptographic signature verification to guarantee update integrity. For tools deployed in corporate environments without direct internet access, we set up an internal update server. Either way, you stay in control: staged rollouts by user group, rollback on failure, and centralised update logs. ### Can the app access hardware like cameras, printers, or serial ports? Yes, that's precisely one of the key advantages of a native desktop application over a web solution. With Electron or Tauri, we can access serial ports (RS-232, USB-to-serial) via node-serialport, drive thermal and label printers (Zebra, Brother, Dymo), capture an industrial camera feed via DirectShow or AVFoundation, and interface barcode scanners and RFID readers. For very specific requirements (industrial PLCs, Modbus protocol, proprietary vendor drivers), we assess feasibility during scoping. Applications requiring low-level driver access can combine a native Rust module (via Tauri) or a compiled Node.js addon to guarantee the performance needed. ### Do you handle App Store and Microsoft Store publishing? Yes, we manage the full publishing process. For the Mac App Store, that includes enrolling in the Apple Developer Program ($99/year), configuring entitlements, signing with a distribution certificate, sandboxing for Apple's requirements, and submitting through App Store Connect. For the Microsoft Store, we handle developer account creation, MSIX packaging, signing, and submission. Review timelines are 24–72 hours at Microsoft and 1–7 days at Apple depending on review cycles. Direct distribution (signed installer outside the store) is also an option, often faster for internal or professional tools. We recommend a polished [user interface](https://eldev.fr/en/services/ui-ux-design/index.md) before any submission, as both stores have strict UI guidelines. ## Other services - [Web Development](https://eldev.fr/en/services/web-development/index.md): Custom sites & apps - [E-commerce](https://eldev.fr/en/services/e-commerce/index.md): Stores that convert - [Mobile Apps](https://eldev.fr/en/services/mobile-apps/index.md): iOS & Android - [Artificial Intelligence](https://eldev.fr/en/services/artificial-intelligence/index.md): Automation & chatbots - [UI/UX Design](https://eldev.fr/en/services/ui-ux-design/index.md): Memorable interfaces - [WordPress & CMS](https://eldev.fr/en/services/wordpress-cms/index.md): Content management - [Hosting & Infra](https://eldev.fr/en/services/hosting-infra/index.md): Servers & deployment - [Maintenance](https://eldev.fr/en/services/maintenance/index.md): Ongoing support - [ERP & Consulting](https://eldev.fr/en/services/erp-consulting/index.md): Integrated management & audit - [Website Repair](https://eldev.fr/en/services/website-repair/index.md): Emergency, picked up within 2 hours ## Contact [Contact form](https://eldev.fr/en/contact/index.md) (HTML page: https://eldev.fr/en/contact/) · Email: contact@eldev.fr · First chat is free. Response within 12 hours on business days.