Web App to Mobile App — Your SaaS on Both Stores

Web app or website? It changes what matters

A brochure site becomes an app the moment it renders. A web app has to keep people signed in, take payments, and respect the store rules that apply to accounts and subscriptions. That is where most conversions fail — not at the build step, but at login, at checkout, and at review.

How your web app becomes a mobile app

1. 1. Point us at your URL

   Paste the URL your users already use. The free checker reports what your app exposes — manifest, icons, service worker, HTTPS — and what to fix before you build. No account needed.

2. 2. Add what makes it an app

   Push notifications, biometric unlock, deep links, native share, home-screen shortcuts, geolocation: switched on per project, so what you ship is an app, not a bookmark.

3. 3. Build for both stores

   A signed AAB and APK for Google Play, a signed .ipa for the App Store, and Windows, macOS and Linux builds from the same URL if you want them.

4. 4. Publish

   Upload the files yourself, or connect your Google Play and App Store Connect accounts and publish from your dashboard. The apps are signed with your own accounts — they belong to you.

Your users stay signed in

The container keeps cookies and local storage between launches, so a session that survives on the web survives in the app. People open the app and land where they left off, instead of signing in again every morning — which is the difference between an app people keep and one they delete in week two.

Google sign-in that actually works

Google refuses OAuth inside an embedded web view: a wrapped app that offers sign-in with Google hits disallowed_useragent and a dead end. It is the single most common reason a wrapped SaaS fails on day one, and most converters never mention it. SaasToStore routes that sign-in the way Google requires and brings the user back into your app, signed in.

Selling subscriptions: the rule that gets SaaS apps rejected

Apple and Google require their own billing for digital goods used inside the app, and both reject apps that push users to an outside payment page. Before your build, SaasToStore checks the pages the stores will look at and flags the payment links that break the rule — the exact rules depend on the market you target, which is part of the check. On Google Play, you can also sell subscriptions inside the app through the built-in RevenueCat module.

Apple rule 4.2: more than a repackaged website

Apple rejects apps that are a website in a shell and nothing else. The fix is not cosmetic — add the things only an app can do:

Rewrite natively, or wrap what you already run?

A native rewrite still wins on raw performance and full offline control. For most web apps, the question is whether that gap is worth a second codebase:

Updates without waiting for app review

You deploy to the web exactly as you do today, and every installed app shows the change on the next launch. You only rebuild when the shell itself changes: name, icon, a new native feature, or a new store requirement. For a product that ships weekly, that is the difference between having a mobile app and running a mobile release process.

Android, iOS and desktop from the same web app

One project covers Google Play, the App Store, the Amazon Appstore and the Samsung Galaxy Store, plus desktop builds for Windows, macOS and Linux — from the URL you already have in production.