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Editorial Team
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Asked: 2026-06-07T04:39:19+00:00

This is not a programming question but I feel SO is the right place

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This is not a programming question but I feel SO is the right place to put it in.

There is an android app in the market. Our job is to upgrade the app in a huge way. There is so much to change to the point where we decided to start a new project from scratch.

My question is: in order to be able to replace (upgrade) the existing app in the Play store, What should we do? Keep the same package name? or the sign key is enough? or both? or what?

Thanks for your help and sorry if this is not the right place.

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1 Answer

  1. Editorial Team

    You must have both the same package name and the same signature key. Also, if it has any sort of intents/actions that can be launched from other applications, you may want to keep those the same (in case a user has setup a shortcut to them).

    Package name is how the Play Store determines one app from another. They have to be unique for each app. You can’t change it after you’ve uploaded the original if you’re wanting to upgrade the existing app.

    The signing key is how the Play Store verifies that you are the original developer. If you ever lose or change this key you will absolutely not be able to update the original application!

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