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Yes, you can delete ALL your voice data by going to your account settings in the app, and deleting your account. You have full control of your data.

Meanwhile, feel free to create an account and explore the app, even just by listening to other recordings! And only when you feel comfortable sharing your thoughts with your voice, you can participate.

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This is a cool idea, and you seem genuine. One thing I'm not clear about is how you achieve the claimed privacy. You said the user id data is separated from the user voice data and can't be matched. But you also say that if I delete my account it will delete all the voice data. How do you do this unless there is a mapping from the users table to the voice notes table?

So when user deletes the app, it sends two separate messages to AWS: one to the Cognito which stores the user ID and email, and one to the Dynamo database that has user data linked to the anonymized ID. The data are deleted independently, and upon receiving the success message from both of them, the account is fully deleted. That way, the user data in Dynamo DB does not have to know what is happening in Cognito.

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