Progressive
web app development
in Seattle

The cost depends on the complexity of features, offline functionality requirements, and whether the PWA is built from scratch or developed on top of an existing web platform. A focused PWA for a Seattle professional services firm — converting an existing site into an installable, offline-capable web app — differs significantly from a full-featured progressive web application for a SaaS startup in the South Lake Union corridor with real-time data sync, push notifications, multi-role dashboards, and integration with enterprise backend systems. We confirm exact pricing after reviewing your product brief and technical requirements. Most PWA projects start from a few thousand dollars for focused conversions of existing sites and scale significantly for feature-rich applications built from scratch.

A focused PWA project — covering specification, design, development, and launch — typically takes 6 to 12 weeks for a conversion of an existing web platform. For Seattle businesses building a PWA from scratch with complex offline functionality, background sync, real-time data, and multi-role user flows — common in the city's healthcare IT, aerospace operations, and maritime logistics sectors — timelines extend to 3 to 5 months. We set a clear schedule at kickoff with defined milestones and deliver working builds throughout development so your Seattle team can test across the mix of devices — iPhones, Android phones, and desktop browsers — that reflects the actual diversity of your user base.

Businesses that need broad cross-device reach without the cost and complexity of maintaining separate iOS and Android codebases are strong PWA candidates. In Seattle, this includes professional services firms that want a fast, installable client-facing tool without committing to App Store and Google Play distribution overhead, nonprofits in the Belltown and Capitol Hill corridors that need a mobile-optimized experience for community members on a range of devices without a native app development budget, maritime businesses serving the Port of Seattle that need lightweight operational tools accessible on any device crew members carry aboard, and retail and food businesses in Pike Place Market and surrounding neighborhoods that want an installable ordering or loyalty experience without the friction of asking customers to visit an app store. PWAs are also the right choice for Seattle startups that need to validate mobile product concepts quickly before committing to a full native build.

We begin with a discovery phase defining your target users, core use cases, and the specific PWA capabilities required — offline access, push notifications, home screen installation, background sync, or camera access. A technical specification is approved before design begins. UI design follows the same process as a native app — user flows, wireframes, and visual design for every screen — with particular attention to the install prompt experience and offline state handling that distinguish a well-built PWA from a standard mobile website. Development runs in sprints with working builds accessible from a staging URL for your Seattle team to test across devices before launch — no TestFlight or Play Console access required, which simplifies testing for non-technical stakeholders.

A standard mobile website requires an active internet connection, cannot be installed on a home screen as a standalone app, and cannot send push notifications or function offline. A PWA adds all of these capabilities through service workers, a web app manifest, and modern browser APIs. For Seattle businesses whose customers access their site on mobile — which covers the vast majority of consumer and professional-facing businesses in a city where commuters on King County Metro and Sound Transit light rail browse extensively on mobile — a PWA delivers an experience that feels like a native app: instant loading from cache, home screen presence, and offline functionality, without requiring users to visit an app store or trust a new installation on their device.

For many Seattle use cases, yes — and at significantly lower development and maintenance cost. A PWA covers the majority of what most business apps need: installability, offline access, push notifications, fast performance, and a consistent experience across iOS and Android. The cases where native apps remain necessary are those requiring deep hardware integration — Bluetooth, NFC, advanced camera controls, background GPS tracking for Seattle's maritime and field operations contexts — or those where App Store and Google Play discoverability is a meaningful customer acquisition channel. For Seattle businesses evaluating both options, we present an honest comparison based on your specific use case and user profile rather than defaulting to the higher-cost recommendation.

Development runs in two-week sprints with a working PWA build deployed to a staging URL at the end of each cycle — accessible from any device your Seattle team members use without requiring special testing tools. This makes cross-device testing straightforward in a city where teams routinely mix iPhones, Android phones, and desktop browsers across a distributed workforce. A shared project workspace tracks every feature from specification through launch. For Seattle clients with non-technical decision-makers — marketing leads, clinic administrators, nonprofit program directors — we provide plain-language sprint summaries describing what was built and what is coming next without requiring web development familiarity to understand the project's progress.

Post-launch support covers bug fixes identified after launch, browser compatibility updates as Chrome, Safari, and Firefox release new versions, performance monitoring, and feature additions based on user feedback. For Seattle clients who want continued development — adding new functionality, expanding offline capabilities, integrating new third-party services, or improving the install prompt conversion rate based on real user behavior data — we offer a monthly retainer with a fixed development allocation. PWAs benefit from continuous improvement as browser support for web APIs expands — capabilities that required a native app in Seattle's early mobile market are increasingly achievable in a PWA today — and clients on an active retainer can take advantage of those improvements as they become available without commissioning separate projects each time.