> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/deploying/android-deployment/overview.md).

# Google Play Overview

This guide does not substitute reading Google Documentation:

{% embed url="<https://support.google.com/googleplay/>" %}

## What is an .aab?

It's a file format with all the necessary resources to generate optimized APKs.

In a practical manner this is the new format that you need to use to submit an app to Google.

Read here for more detailed explanation: <https://developer.android.com/guide/app-bundle>

## One file format two options:

### Option A - AAB signed by Google

Let Google generate an app signing key (recommended).

More than 90% of new apps use Google-generated app signing keys\
Protects against loss or compromise (the key is not downloadable).

Download distribution APKs signed with the Google-generated key for other distribution channels, or use a different key for them.

### Option B - AAB with my own key

Choose your own app signing key.

Keep a local copy of the key for increased flexibility.

Use the key you're already using (for example, if your app is pre-installed).

Increased security risk if local copy is compromised.

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