Both Whatsapp and Signal store their messages in a sqlite-db as well! If your device is rooted/jailbroken, extracting the data is relatively simple (see e.g. he

Both Whatsapp and Signal store their messages in a sqlite-db as well! If your device is rooted/jailbroken, extracting the data is relatively simple (see e.g. here: https://towardsdatascience.com/analyzing-my-whatsapp-database-using-sql-and-redash-5ef9bd6a0b0 https://towardsdatascience.com/analyzing-my-whatsapp-databas...)