Biodata save, update, delete

Does anyone have a method for creating an education app? , That if the user logs out and then logs in again, whatever his biodata is saved, after logging in, it should appear again in the app. And if there is a way to update and delete that biodata, then give me some inspiration. Tell me if the corner has aia, block images.

use tinydb to save the values and for update use the same too

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The data saved in tny db, after deleting the data of the app, also gets lost.

You can use Firebase in that case. Refer to the guide below to understand how firebase works.

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