Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
SlashifyTech is a progressive web app development company in India that builds installable, offline-capable, app-like web experiences for D2C brands, SaaS businesses, B2B platforms, and content-driven products that want the reach of the web with the user experience of a native app - without paying the cost or time of building separate iOS and Android apps. Progressive web app development in India costs between ₹2,50,000 and ₹15,00,000+ depending on platform complexity, offline functionality, and integrations required. Projects typically take 6 to 16 weeks from discovery to launch. Get a free estimate →
SlashifyTech is a progressive web app development company in India providing end-to-end PWA solutions for D2C brands, SaaS businesses, and content-driven products across Jaipur, Indore, Mumbai, Bengaluru, Gurugram, and globally - backed by ISO 27001 and ISO 9001 certification.
One codebase, every device, full offline capability - the web app experience that feels like a native app without the app store gatekeeping.
As a trusted provider of progressive web app development service in India, SlashifyTech builds PWA experiences engineered to deliver native-app-like performance, offline reliability, and installability - without the cost, complexity, and app store gatekeeping of building separate iOS and Android apps. Here is every solution we deliver within progressive web app development:
Custom progressive web app development is the process of building a web application that uses modern web capabilities - service workers, web app manifests, and responsive design - to deliver an experience that feels like a native mobile app: installable on a user's home screen, capable of working offline, and able to send push notifications, all from a single web codebase.
We design and build PWAs from the ground up using React, Next.js, and modern PWA APIs - covering installability, offline-first architecture with service workers, push notifications, background sync, and responsive design that adapts seamlessly from mobile to desktop. Every PWA we build is engineered for Core Web Vitals from day one, because PWAs that don't load fast on mobile defeat the entire purpose of the architecture.
PWA conversion is the process of upgrading an existing web application or website to support progressive web app capabilities - adding service workers for offline functionality, a web app manifest for installability, push notification support, and Core Web Vitals optimisation - without rebuilding the underlying application.
If you already have a working web application or website, we convert it into a fully-featured PWA without rebuilding from scratch. The work involves adding service worker layers for offline caching and background sync, configuring a web app manifest so users can install the app to their home screen, implementing push notification infrastructure, and optimising Core Web Vitals to meet PWA performance standards. The result: the same web app, now with app-store-free distribution and native-app-like user experience.
Offline-first PWA architecture is a design approach where the web application is built to function fully or partially without an internet connection - using local data caching, service workers, and intelligent sync mechanisms - so users can continue working through unreliable connectivity and the app reconciles changes once a connection returns.
For PWAs serving users in field operations, logistics, healthcare, travel, or any environment where internet connectivity is unreliable, we build offline-first architectures that keep the app fully functional regardless of connection state. Local data caching via IndexedDB, service worker-managed offline pages, intelligent sync with conflict resolution, and background updates when connectivity returns - all designed to feel seamless to the user even when the network isn't.
A push notification PWA is a progressive web app that uses the Web Push API to deliver real-time notifications to users' devices - on both desktop and mobile - giving businesses the same direct engagement channel as native apps without requiring app store installation.
We build PWAs with full push notification infrastructure - giving D2C brands, SaaS platforms, news and content businesses, and engagement-driven products a direct line to user devices without app store gatekeeping. Notification campaigns, transactional alerts, abandoned cart recovery, content alerts, and re-engagement workflows - all powered by a single PWA codebase that works across Chrome, Edge, Safari (on iOS 16.4+), and Firefox.
PWA performance optimisation is the process of tuning a progressive web app's Core Web Vitals - Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift - through code splitting, lazy loading, image optimisation, and caching strategy, to improve user experience, SEO rankings, and conversion rates.
A PWA that doesn't load fast on mobile defeats its own purpose. We audit and optimise the full performance stack of existing PWAs - Core Web Vitals scores, JavaScript bundle size, image delivery, third-party script load order, caching layers, and service worker efficiency. Every optimisation is measured against Google's Web Vitals thresholds and the business outcomes that follow: lower bounce rates, higher conversion, and stronger search rankings.
PWA maintenance is the ongoing process of monitoring, updating, and improving a progressive web app post-launch - including security patches, browser compatibility testing across PWA-supporting browsers, service worker updates, push notification system maintenance, and feature development based on user behaviour data.
PWAs need ongoing maintenance because browser PWA support keeps evolving, security expectations keep rising, and the gap between a PWA built well in 2024 and one optimised for 2026 is meaningful. We provide monthly maintenance retainers covering security patching, browser compatibility testing (Chrome, Edge, Safari, Firefox), service worker and manifest updates, push notification infrastructure maintenance, Core Web Vitals monitoring, and feature additions based on user analytics.
A progressive web app is the right choice for businesses that want app-like user experience and engagement without the cost, time, or app store overhead of building separate native iOS and Android apps. It is not the right fit for businesses that need deep native hardware integration (advanced camera processing, Bluetooth peripherals, complex biometric flows), real-money gaming, or apps where app store discoverability is a critical user acquisition channel - in those cases, native or hybrid mobile apps are usually the better starting point. Our progressive web app development service is built around five common business situations - see which one matches yours below:
A D2C brand or product business with a strong web presence and growing repeat-purchase customer base - and you want to give your customers an installable, app-like shopping experience without committing to the cost and complexity of building and maintaining separate iOS and Android apps.
Build a PWA on top of your existing web presence (or as a new build) that customers can install to their home screen, browse offline, and receive push notifications from - delivering the engagement of a native app at a fraction of the build and maintenance cost.
A SaaS business whose users access your platform daily from desktop and mobile browsers, and where the difference between a 3-second load time and a 1-second load time directly affects user retention, daily active usage, and renewal rates.
Build a PWA-architected SaaS frontend with installability, offline capability for key workflows, push notifications for in-product alerts, and Core Web Vitals-optimised performance - so your users get the speed and reliability of a native app inside their browser.
A field service operation, logistics team, healthcare network, or any business whose users work in environments where internet connectivity is unreliable - and where a frozen web app or a "no internet" error means real operational disruption.
Build an offline-first PWA that keeps your team fully productive regardless of connection state - with local data caching, offline workflow support, and intelligent sync that reconciles changes the moment a connection returns, all without the cost of building a separate native mobile app.
A news platform, content business, online publication, or media product whose growth depends on bringing the same users back day after day - and where the app store route is expensive, slow to launch, and uncertain in terms of discoverability and ROI.
Build a PWA with full push notification infrastructure, installability, and offline article access - giving your content the direct user engagement of a native app without the app store gatekeeping, review delays, or platform fees.
A business with a working web platform but no mobile app, and where the executive conversation about "we need a mobile app" keeps stalling because of the cost, timeline, and team capacity required to build and maintain separate iOS and Android apps.
Convert your existing web platform into a fully-featured PWA - installable, offline-capable, push-enabled - giving you 80 to 90% of the native app experience at 20 to 30% of the cost, with a single codebase your team already understands.
A PWA is only as useful as the underlying capabilities engineered into it. Anyone can call a web app "progressive" - but the PWAs that genuinely deliver app-like user experience, drive engagement, and outperform mobile websites are built around four non-negotiable capabilities. Every PWA we ship at SlashifyTech is built with all four working seamlessly together from day one.
| Factor | What It Means | Why It Matters |
|---|---|---|
| Installability & Home Screen Presence | Fully installable across Chrome, Edge, Safari (iOS 16.4+), and Firefox - with properly configured web app manifest, custom app icons across all device sizes, branded splash screens, native-app-like display modes (standalone, fullscreen, minimal-ui), and install prompts timed for maximum opt-in rates | The biggest gap between PWAs and native apps used to be presence on the home screen. With installability, that gap closes - and engagement, repeat usage, and retention numbers start to look more like native apps than like web browsing |
| Offline-First Functionality & Background Sync | Service worker-driven offline architecture with cached pages and assets, IndexedDB-stored local state for offline workflows, queued user actions that execute the moment connectivity returns, and intelligent conflict resolution for data changes made offline | A PWA that fails when the user steps into a basement, gets on a flight, or enters a low-coverage tier-2 city defeats the entire purpose of progressive web architecture. True offline-first capability is the difference between a PWA and a glorified mobile site |
| Push Notifications & Real-Time User Engagement | Full Web Push notification infrastructure with permission flows tuned for high opt-in rates, segmentation logic for personalised campaigns, transactional alerts, engagement workflows (abandoned cart, content alerts, re-engagement), and analytics tracking - compatible with Chrome, Edge, Firefox, and Safari on iOS 16.4+ | Push notifications drive 3 to 5x higher engagement than email for most consumer products. A PWA without push notifications gives up the single most powerful re-engagement channel available to digital products in 2026 |
| Core Web Vitals & Mobile-First Performance | Engineered for Core Web Vitals from the first commit - aggressive code splitting, image lazy loading and WebP delivery, third-party script load order optimisation, and service worker caching strategy. Sub-2-second mobile load times as baseline, sub-1-second on repeat visits as the target | A PWA that loads slowly is a PWA that fails its core promise. Worse, it ranks lower on Google, converts at lower rates, and gets dropped by users within seconds. Core Web Vitals optimisation isn't a finishing touch - it is the foundation |
Explore platforms and applications delivered through our scalable web app development service and enterprise-ready software expertise.
Everything you need to know before we even start.
A basic PWA conversion of an existing web application - adding service workers, web app manifest, installability, and Core Web Vitals optimisation - typically takes 4 to 6 weeks. A custom PWA built from scratch with offline-first architecture, push notifications, and a full content or commerce experience takes 8 to 12 weeks. PWAs with deep integrations, complex offline sync, multi-tenant architecture, or enterprise compliance requirements take 12 to 16 weeks. We provide an exact timeline during the discovery call once we have reviewed your full requirements.
Progressive web app development in India costs between ₹2,50,000 and ₹15,00,000+ depending on whether you are converting an existing web app or building from scratch, the depth of offline functionality, and the number of integrations required. PWA conversion of an existing platform starts from ₹2,50,000. A custom PWA built from scratch with offline-first capability and push notifications is typically ₹5,00,000 to ₹10,00,000. PWAs with complex offline sync, multi-tenant architecture, or enterprise integrations range from ₹10,00,000 to ₹15,00,000+. At SlashifyTech, we provide a transparent, line-item quote after the discovery call - no hidden charges.
A PWA is right for businesses that want app-like user experience and engagement without the cost and complexity of building separate iOS and Android native apps - and where deep native hardware integration is not a critical requirement. A native mobile app is right for businesses needing advanced camera processing, Bluetooth peripherals, complex biometric flows, real-money gaming, or where app store discoverability is a critical user acquisition channel. If you are still unsure, book a free consultation - we will give you an honest recommendation, including when we think native or hybrid mobile is the better fit.
Yes. PWA conversion is one of our most common engagements. We audit your existing web platform, add service workers for offline caching and background sync, configure a web app manifest so users can install the app to their home screen, implement push notification infrastructure, and optimise Core Web Vitals to meet PWA performance standards. The conversion typically takes 4 to 6 weeks and does not require rebuilding your existing application from scratch.
Yes, when built correctly. PWAs use service workers to cache application files and data locally, and IndexedDB or similar local storage to maintain offline data state. For browsing previously-loaded content, viewing cached pages, and continuing work on offline forms or workflows, PWAs work fully without an internet connection. For real-time data sync, server-dependent actions resume automatically when connectivity returns, with intelligent conflict resolution managing any changes made offline.
Our standard PWA stack is Next.js or React for the frontend (with built-in PWA capabilities), Workbox for service worker management, IndexedDB for offline data storage, and Firebase Cloud Messaging or OneSignal for push notifications. Backend integration is typically through REST or GraphQL APIs to Node.js or Django services. For PWAs requiring deeper offline capability, we use libraries like RxDB or Dexie for client-side database management. We recommend the right stack based on your specific feature requirements, performance targets, and team capability - not based on what we already know.
PWAs work on both iOS and Android. iOS PWA support has improved significantly with iOS 16.4 and later, which added support for Web Push notifications, badging, and improved installability. Most PWA features (installability, offline mode, service workers) work across Chrome, Edge, Safari, and Firefox on both iOS and Android. Some advanced features like background sync remain Chrome-and-Android-first, which is worth knowing when scoping a PWA targeting iOS users heavily. We design PWAs accounting for these differences so your iOS users get the best possible experience.
Yes. We offer a 30-day post-launch warranty on all PWA builds - any issue arising from development is fixed at no charge. Beyond that, we offer monthly maintenance retainers covering security patching, browser compatibility testing across Chrome, Edge, Safari, and Firefox, service worker and manifest updates, push notification infrastructure maintenance, Core Web Vitals monitoring, and feature additions based on user analytics. PWAs need ongoing maintenance because browser PWA support evolves constantly, and a partner that handles those updates is worth the retainer.
Our work is backed by real client reviews, successful launches, and long-term partnerships.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
Loved to work on our CMS project from the team. They are young and very charismatic. Would highly recommend this Software Development Agency for you.
They are an amazing team of young, and hardworking talent. I have worked with them on multiple projects and all work has been done with satisfaction and time bound manner! Highly recommend their services.
Our experience working with them has been great. Starting from listening to what we needed and suggesting what could be effective based on our requirement, regular update after major developments to take review of the process was done.
Slashify Tech did wonderful job creating my website. They patiently listened to my ideas, made thoughtful changes, and brought my vision to life with clarity.I shared my logo, and they built entire site around it with attention to detail. The final result truly reflects my brand, and I’m very happy with how it turned out.i highly recommend it to anyone looking to build a meaningful and well- rounded website.
I am extremely pleased with the outstanding work done by Slashifytech on my website. They excelled in performance, design, and optimization, exceeding my expectations. Highly recommend their services.
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