Installable progressive web apps (PWAs) are web applications that users can install on their device's home screen and launch like native apps, offering app-like experiences through web technologies without app store distribution. Unlike native apps built separately for iOS and Android, installable PWAs use a single codebase with web app manifests and service workers to provide offline functionality, push notifications, and standalone UI that rivals platform-specific applications.
The choice between building an installable PWA versus a native app is one of the most critical architectural decisions for modern software teams. While native apps have dominated mobile development for over a decade, installable progressive web apps have matured into a viable alternative that can significantly reduce development costs and time-to-market—but only when applied to the right use cases.
This guide helps engineers evaluate when to build an installable PWA, when native apps remain the better choice, and how to apply a decision framework to your specific requirements.
What Makes a PWA "Installable"?
Before comparing PWAs to native apps, it's important to understand what "installable" means in the context of progressive web apps. An installable PWA isn't just a responsive website—it's a web application that meets specific technical criteria allowing browsers to prompt users to install it.
Technical Requirements for Installation
To become installable, a PWA must satisfy these core requirements:
1. Web App Manifest
The manifest.json file tells the browser how the app should appear when installed:
- App name and short name
- Icons in multiple sizes (typically 192x192 and 512x512)
- Start URL and scope
- Display mode (standalone, fullscreen, minimal-ui)
- Theme colors and background color
- Orientation preferences
2. Service Worker
A registered service worker enables offline functionality and is mandatory for installation:
- Must handle fetch events
- Enables caching strategies
- Powers background sync and push notifications
- Provides resilience during network failures
3. HTTPS
All PWAs must be served over HTTPS to ensure secure communication. This is non-negotiable—browsers will not allow installation of insecure web apps.
4. Engagement Signals
Modern browsers use heuristics to determine when to show install prompts:
- User has visited the site multiple times
- User has engaged with content
- Sufficient time has elapsed between visits
- The app appears valuable to the user
Once these criteria are met, browsers display an install prompt, and users can add the PWA to their home screen. When launched, the PWA opens in standalone mode—without browser UI—creating an experience nearly indistinguishable from native apps.
Installable PWAs vs Native Apps: Key Differences
Understanding the technical and practical differences between installable PWAs and native apps is essential for making informed architectural decisions.
Distribution and Updates
Native Apps:
- Distributed through platform-specific app stores (Apple App Store, Google Play)
- Subject to review processes that can take days or weeks
- Users must manually update apps (or enable auto-updates)
- Versioning managed through app store mechanisms
- App store fees (typically 15-30% of revenue)
Installable PWAs:
- Distributed through web URLs—no app store required
- No review process or approval delays
- Updates deployed instantly to all users
- Versioning controlled through service worker cache strategies
- Zero distribution fees or revenue sharing
Development and Maintenance
Native Apps:
- Require separate codebases for iOS (Swift/Objective-C) and Android (Kotlin/Java)
- Platform-specific tooling (Xcode, Android Studio)
- Need specialized developers for each platform
- Higher development and maintenance costs
- Testing required on multiple device configurations per platform
Installable PWAs:
- Single codebase built with HTML, CSS, and JavaScript
- Standard web development tools
- Web developers can build for all platforms
- Lower development costs (typically 40-60% less than dual native apps)
- Cross-platform testing simplified through web browsers
Capabilities and Performance
Native Apps:
- Full access to device hardware (Bluetooth, NFC, advanced sensors)
- Maximum performance for graphics-intensive applications
- Deep OS integration (widgets, live activities, system settings)
- Offline-first by default
- Background processing without restrictions
Installable PWAs:
- Limited hardware access (growing with new Web APIs)
- Near-native performance for most use cases
- Limited OS integration (improving with web standards)
- Offline capable through service workers
- Background processing restricted by browser limitations
User Experience
Native Apps:
- Platform-specific UI patterns (iOS Human Interface, Material Design)
- Seamless integration with OS features
- App store credibility and discoverability
- Familiar installation process for users
- Full-screen experience with no browser chrome
Installable PWAs:
- Consistent cross-platform experience (pro and con)
- Standalone mode without browser UI when installed
- No app store discovery (must drive traffic through web/SEO)
- Lightweight installation (prompts appear in browser)
- Users can access before installing (try before you buy)
When to Choose an Installable PWA
Progressive web apps excel in specific scenarios where their unique characteristics provide significant advantages over native development. Here's when to choose an installable PWA:
1. Content-First Applications
If your primary goal is delivering content rather than complex interactions, PWAs are ideal:
- News and media sites
- Blogs and publishing platforms
- E-commerce catalogs
- Documentation sites
- Marketing and promotional campaigns
Example: The Washington Post's PWA delivers fast-loading news with offline reading capabilities, achieving 80ms load times on repeat visits.
2. Rapid Iteration and Experimentation
When speed to market and continuous deployment matter most:
- Startups testing product-market fit
- Internal tools and dashboards
- Beta products requiring frequent updates
- A/B testing scenarios
- Seasonal or time-sensitive applications
Why it works: Deploy updates instantly without app store approval, allowing for same-day bug fixes and feature releases.
3. Broad Platform Reach with Limited Resources
When you need to reach users across all devices but lack resources for multiple native apps:
- Small teams (fewer than 10 developers)
- Budget constraints
- Emerging markets where users have diverse, often older devices
- Desktop + mobile requirements
- Cross-platform consistency is critical
Cost comparison: Building an installable PWA typically costs 40-60% less than developing separate iOS and Android native apps.
4. SEO and Organic Discovery Matter
When search engine visibility is a primary acquisition channel:
- B2B SaaS products
- Educational platforms
- Service directories
- Local business applications
- Long-tail content strategies
Advantage: PWAs are fully indexable by search engines, unlike native apps buried in app stores. Users can discover your app through Google searches and access it immediately.
5. Frictionless User Acquisition
When reducing installation barriers increases conversion:
- Low-commitment services
- Trial-before-install models
- Social sharing is important
- Users resistant to downloading large apps
- Storage-conscious markets
User behavior: Users can try your PWA instantly through a URL, then install if they find value—removing the massive friction of app store downloads.
6. Push Notifications Without App Stores
When you need to re-engage users but don't want app store overhead:
- E-commerce order updates
- News notifications
- Social platform engagement
- SaaS product updates
- Appointment reminders
With PWA push notifications, you can re-engage users even when the app isn't open, bridging one of the major gaps between web and native experiences. Progressive web apps support push notifications across desktop and mobile platforms, enabling timely user engagement without the complexity of native app development.
When Native Apps Still Win
Despite PWA advantages, native apps remain the better choice in several critical scenarios. Be honest about these limitations when making architectural decisions:
1. Hardware-Intensive Features
Native apps are mandatory when you need:
- Bluetooth connectivity - Fitness trackers, IoT devices, smart home integration
- NFC capabilities - Payment processing, access cards, contactless interactions
- Advanced camera features - AR filters, professional photography apps, scanner applications
- Biometric authentication - Face ID, fingerprint sensors beyond basic web authentication
- Background location tracking - Fitness apps, delivery tracking, location-based services
Current state: While Web Bluetooth and Web NFC APIs exist, they have limited browser support and reduced capabilities compared to native implementations.
2. Performance-Critical Applications
When maximum performance is non-negotiable:
- 3D games with complex graphics
- Video editing and media processing
- Real-time collaboration with low latency requirements
- Large dataset manipulation
- Complex animations at 60fps+
Why native wins: Direct access to GPU, compiled languages (Swift, Kotlin), and metal/vulkan APIs provide performance that JavaScript and WebGL cannot match.
3. Deep OS Integration
When platform-specific features are core to the experience:
- Home screen widgets
- Live activities (iOS)
- System notifications with rich actions
- Background app refresh
- Siri/Google Assistant shortcuts
- Platform-specific gestures and UI patterns
Reality check: PWAs can't provide widgets, live activities, or deep system integration that users expect from native apps.
4. App Store Presence Required
When your business model depends on app store dynamics:
- Games relying on app store featuring
- Apps where app store rankings drive discovery
- In-app purchases through platform payment systems
- Enterprise apps requiring MDM (Mobile Device Management)
- Apps targeting users who only discover apps through stores
Consideration: Many users, especially on iOS, primarily discover apps through the App Store. PWAs require alternative acquisition strategies.
5. Offline-First, Data-Heavy Applications
When complex offline functionality is paramount:
- Offline mapping and navigation
- Large media libraries with offline playback
- Offline document editing with complex sync
- Field service apps in areas without connectivity
- Database-heavy applications
PWA limitation: While service workers enable offline functionality, complex offline scenarios with large data requirements are easier to manage natively.
6. Platform-Specific Design Languages
When matching platform UI conventions is critical:
- Enterprise apps requiring iOS Human Interface Guidelines compliance
- Apps where Material Design is a requirement
- Government or regulated applications with platform-specific UI standards
- Apps targeting a single platform's ecosystem
Trade-off: PWAs provide consistent cross-platform UI, which can feel "wrong" to users expecting platform-native patterns.
The Hybrid Approach: Best of Both Worlds
Many successful companies don't choose between PWAs and native apps—they build both, using each for its strengths. This hybrid strategy is increasingly common among teams with resources to support multiple platforms.
How Hybrid Strategies Work
PWA as the Entry Point:
- Users discover the PWA through search or social sharing
- They can use the web app immediately without installation
- Power users who find value can install the PWA to their home screen
- For users requiring advanced features, a native app is available
Native App for Premium Features:
- Advanced capabilities requiring hardware access
- Features demanding maximum performance
- Platform-specific integrations
- Users willing to download a larger application
Real-World Hybrid Examples
Twitter/X:
- X Lite (PWA) provides fast, data-efficient access on slow networks
- Native apps offer full feature sets for engaged users
- Both share similar experiences but optimize for different contexts
Starbucks:
- PWA enables menu browsing and order customization offline
- Native app integrates with Starbucks Rewards and mobile payments
- PWA is 99.84% smaller than the native iOS app
Spotify:
- Web player (PWA-capable) for casual listening
- Native apps for offline downloads, high-quality audio, and platform integration
- Both maintain library sync and playback continuity
When Hybrid Makes Sense
Consider a hybrid approach when:
- You have resources for multiple platforms
- User segments have different needs (casual vs. power users)
- You want to test features in PWA before native implementation
- SEO and app store presence both matter
- Different markets have different platform preferences
Development strategy: Start with an installable PWA to validate product-market fit, then invest in native apps once you've proven value and identified features that genuinely require native capabilities.
Making the Decision: A Framework for Engineers
Use this decision framework to evaluate whether an installable PWA or native app (or both) is right for your project.
Step 1: Assess Core Requirements
Answer these critical questions:
Does your app require:
- Bluetooth, NFC, or advanced hardware access?
- Maximum performance for graphics/processing?
- Deep OS integration (widgets, live activities)?
- Extensive offline functionality with large datasets?
- Platform-specific UI/UX that users expect?
If you checked 3+ boxes: Native apps are likely required. If you checked 0-2 boxes, continue evaluation.
Step 2: Evaluate Business Constraints
Resources:
- Development team size: ___
- Development budget: ___
- Time to first release: ___
- Platforms required: iOS / Android / Desktop / All
If resources are limited and you need multi-platform support: PWA strongly favored.
Acquisition Strategy:
- Primary discovery channel: Search / App Store / Social / Direct
- Importance of SEO: Critical / Important / Nice-to-have / Not important
- Installation barrier tolerance: High / Medium / Low
If SEO is critical and installation barriers hurt conversion: PWA strongly favored.
Step 3: Consider User Context
Your target users:
- Primarily access from: Mobile / Desktop / Both equally
- App usage frequency: Daily / Weekly / Occasionally / Rarely
- Storage sensitivity: Very concerned / Somewhat / Not concerned
- Platform distribution: iOS-heavy / Android-heavy / Mixed / Desktop-heavy
If users are storage-sensitive and usage is occasional: PWA favored.
If users are daily active and expect deep platform integration: Native favored.
Step 4: Prototype and Validate
Before committing to full development:
- Build a PWA MVP - Test core functionality with a progressive web app
- Measure engagement - Track installation rates, return visits, feature usage
- Collect feedback - Ask users directly about missing capabilities
- Identify gaps - Document features that truly require native implementation
- Make data-driven decision - Choose native only if data shows clear need
Decision Matrix
| Factor | Favors PWA | Favors Native | Weight |
|---|---|---|---|
| Hardware access needed | No | Yes | High |
| Performance requirements | Standard | Intensive | High |
| Development resources | Limited | Substantial | High |
| Time to market | Urgent | Flexible | Medium |
| Platform reach | Multi-platform | Single platform | Medium |
| SEO importance | Critical | Not important | Medium |
| App store presence | Not needed | Required | Medium |
| Update frequency | High | Low | Low |
| Installation friction | Should be low | Acceptable | Low |
Scoring: Assign weights and tally points for each option. This quantitative approach removes emotion from technical decisions.
Implementation Considerations for Installable PWAs
If you've decided to build an installable PWA, consider these engineering best practices:
Manifest Configuration
Create a comprehensive web app manifest:
{
"name": "Your App Name",
"short_name": "App",
"description": "What your app does",
"start_url": "/",
"scope": "/",
"display": "standalone",
"orientation": "portrait-primary",
"background_color": "#ffffff",
"theme_color": "#000000",
"icons": [
{
"src": "/icons/icon-192x192.png",
"sizes": "192x192",
"type": "image/png",
"purpose": "any maskable"
},
{
"src": "/icons/icon-512x512.png",
"sizes": "512x512",
"type": "image/png",
"purpose": "any maskable"
}
]
}
Key decisions:
- Display mode:
standaloneremoves browser UI;minimal-uikeeps minimal controls - Icons: Provide maskable icons for Android adaptive icons
- Start URL: Where users land when launching from home screen
- Scope: Defines which URLs are part of the PWA experience
Service Worker Strategy
Choose a caching strategy appropriate for your content:
- Cache-first: Static assets that rarely change (CSS, images, fonts)
- Network-first: Dynamic content that should always be fresh (API responses)
- Stale-while-revalidate: Serve cached content while fetching updates (news, social feeds)
Installation Prompts
Don't rely solely on browser-provided install prompts:
- Detect installability using the
beforeinstallpromptevent - Show custom UI that fits your app's design language
- Explain value proposition before prompting installation
- Respect user decisions - don't spam with repeated prompts
Push Notification Implementation
If your PWA requires push notifications, follow best practices:
- Request permission at a contextually appropriate time
- Explain the benefit before asking for permission
- Segment users and personalize notification content
- Respect frequency preferences to avoid notification fatigue
For a complete implementation guide, see Using Push Notifications in PWAs, which covers service worker setup, permission handling, and notification delivery across platforms.
Platform-Specific Considerations
iOS (Safari):
- Users must manually add PWA to home screen (no automatic prompt on iOS < 16.4)
- Push notifications require iOS 16.4+ and explicit home screen installation
- Service worker limitations compared to Android
- No Web Bluetooth or Web NFC support
Android (Chrome):
- Automatic install prompts based on engagement heuristics
- Full push notification support
- Better service worker capabilities
- Web Bluetooth and Web NFC available
Desktop:
- Excellent PWA support in Chrome, Edge, and Firefox
- Users can install PWAs alongside traditional desktop apps
- Full push notification support
- Seamless integration with OS taskbars and app launchers
Future of Installable PWAs
The gap between PWAs and native apps continues to narrow as web standards evolve. Understanding upcoming capabilities helps with long-term planning:
Emerging Web APIs
Project Fugu (Google/Microsoft initiative) is bringing new capabilities to the web:
- File System Access API - Read/write local files
- Web Share API - Native sharing dialogs
- Badging API - App icon badges for unread counts
- Shortcuts API - App launcher shortcuts
- Screen Wake Lock - Prevent screen from sleeping
Apple's Shifting Stance
With iOS 16.4, Apple finally added:
- Push notification support for home screen PWAs
- Web push API implementation in Safari
- Improved manifest support
This represents a significant shift after years of limited PWA support on iOS, suggesting Apple recognizes PWAs as a legitimate app distribution model.
WebAssembly and Performance
WebAssembly is closing the performance gap:
- Near-native execution speed for compute-intensive tasks
- Language flexibility (Rust, C++, Go compiled to Wasm)
- Access to SIMD instructions for parallel processing
As WebAssembly matures, performance arguments against PWAs weaken.
Conclusion
The decision between installable PWAs and native apps isn't binary—it's a spectrum based on your specific requirements, constraints, and user needs.
Choose installable PWAs when:
- You need broad platform reach with limited resources
- Quick iteration and continuous deployment are critical
- SEO and organic discovery drive user acquisition
- Content delivery is the primary focus
- Installation friction significantly impacts conversion
Choose native apps when:
- Hardware access and deep OS integration are non-negotiable
- Maximum performance is required
- App store presence is central to your distribution strategy
- Platform-specific UI conventions are expected
- You have resources to support platform-specific development
Choose a hybrid approach when:
- Different user segments have different needs
- You want to validate with PWA before investing in native
- Both SEO and app store presence matter
- You have resources to support multiple platforms
The web platform is more capable than ever, and installable PWAs represent a mature, production-ready option for delivering app-like experiences. By honestly assessing your requirements against the decision framework in this guide, you can make an engineering choice that aligns with both technical realities and business goals.
For teams building PWAs, implementing push notifications is often the critical feature that bridges the gap between web and native experiences, enabling user re-engagement without app store distribution overhead.
Frequently Asked Questions
Can PWAs work offline like native apps?
Yes, progressive web apps can work offline through service workers that cache assets and data. However, the scope and complexity of offline functionality is typically easier to implement in native apps, especially for data-heavy applications requiring large local databases.
Do installable PWAs appear in app stores?
PWAs do not automatically appear in traditional app stores. However, you can package PWAs for app store distribution using tools like PWABuilder or Trusted Web Activities (TWA) for Android. This gives you app store presence while maintaining a web-first architecture.
Can I convert my PWA to a native app later?
Yes, you can always build native apps later while keeping your PWA. Many companies start with PWAs to validate product-market fit, then invest in native apps once they've proven value and identified features requiring native capabilities. Your PWA can continue to serve as a lightweight entry point.
How do installable PWAs handle in-app purchases?
PWAs cannot use platform-specific in-app purchase systems (Apple's IAP or Google Play Billing). You must implement your own payment processing through web payment APIs or third-party services like Stripe. This means avoiding the 15-30% platform fees but also losing platform-provided payment infrastructure.
Are PWAs as secure as native apps?
PWAs served over HTTPS are highly secure, with the same transport-layer security as any web application. However, native apps can implement additional security measures like binary obfuscation and platform-specific security features. For most applications, PWA security is more than adequate, but highly sensitive applications (banking, healthcare) may benefit from native security features.
Can I use the same codebase for PWA and native apps?
Not directly, but frameworks like React Native, Flutter, or Ionic allow code sharing between web and native. Alternatively, you can build a PWA and use Trusted Web Activities (Android) or similar approaches to package your PWA for app stores while maintaining a single web codebase.
How do I track installation and usage analytics for PWAs?
Use standard web analytics (Google Analytics, Plausible, etc.) enhanced with PWA-specific metrics. Track the beforeinstallprompt event for installation funnel analysis, use the display-mode media query to detect standalone launches, and implement custom events for PWA-specific user journeys. Service workers can also log offline usage for later synchronization.
