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Use this process when Alter is acting up or when you want to install an older version.
Do not use uninstall cleaners such as CleanMyMac before reinstalling. They can remove Alter’s local data.

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Safe way to reinstall or downgrade

1

Download the version you want

Go to alterhq.com/changelog and download the release you want to install.
2

Quit Alter

Fully quit the app before replacing it.
3

Replace the app in Applications

Drag the downloaded Alter app into your Applications folder and choose Replace.
4

Open Alter again

Launch Alter and confirm your existing chats, transcripts, and settings are still there.

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Why this works

Replacing the app updates the application bundle. It does not do a cleanup pass over your local support files.

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What not to do

  • Do not drag Alter to the trash if you are trying to keep your data
  • Do not use CleanMyMac or similar uninstall tools unless you want a full removal
  • Do not assume reinstalling will restore data from the cloud later

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If you need a true clean uninstall

Back up your local Alter data first. Alter does not keep a cloud copy of your chat history or transcripts for restore. See Local data and privacy.