SaasToStore
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PWA → AAB

Turn your PWA into a signed Android App Bundle (.aab)

A complete PWA-to-AAB pipeline. SaaSToStore wraps your PWA in a Trusted Web Activity using Bubblewrap, signs the .aab with a dedicated keystore, and hands you a file you can upload to the Play Console the same minute.
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The pipeline, step by step

  1. 1. Manifest analysis

    We fetch your PWA and validate the web manifest: name, icons, theme_color, start_url, display.

  2. 2. TWA generation

    Bubblewrap generates the Android project. We inject your icons, splash, package id, and Digital Asset Links so the app launches without browser chrome.

  3. 3. Signing & bundling

    We build with Gradle, sign the .aab with the project keystore, and run a quick integrity check before sending you the file.

  4. 4. Delivery

    Download the signed .aab and upload it to Google Play. The keystore stays on our side so all your future updates remain compatible.

What you get

  • .aab signed with a dedicated upload key
  • Digital Asset Links auto-configured for full-screen launch
  • Adaptive icons and themed splash screen
  • Reusable build — ship updates with one click
  • Optional output to APK for sideloading or testing
  • Compatible with any PWA: Lovable, Bubble, Webflow, Framer, Softr, Glide

Frequently asked questions

What is an Android App Bundle (.aab)?+

The .aab is Google's publishing format. The Play Store generates optimized APKs from the bundle and signs them with your upload key. It has been mandatory for new apps since August 2021.

What is a TWA (Trusted Web Activity)?+

A TWA is the official Android container for shipping a PWA to the Play Store. It runs your site full-screen via Chrome, with verified digital asset links, and is fully accepted by Google.

What does my PWA need to be eligible?+

A valid web manifest (name, icons, theme color, start_url, display: standalone), HTTPS, and a service worker. SaaSToStore checks this for you before building.

Can I convert any web app to an .aab?+

Any installable PWA can be packaged. Pure SSR sites without a manifest need a quick PWA setup first; we tell you exactly what is missing.

Do I need Bubblewrap installed locally?+

No. We run Bubblewrap on our build servers with a clean, reproducible toolchain (Android SDK, JDK, signing keys). You never touch the CLI.

How is the .aab signed?+

We generate a unique upload keystore per project, store it encrypted, and reuse it for every future build so Play Store updates remain compatible.

Ready to ship?

Paste your URL. We handle the build. You publish to the store.

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