Yes - you can delete your Yoti account if you wish to. Once deleted, your information will be removed from our system and you will no longer have access to your sharing receipts. Make sure you delete your account before you delete the app from your phone.
Please note, anyone you shared or swapped information with will still have access to their share receipts.
If you delete your Yoti and then wish to use Yoti again in the future you will need to download the app and go through the registration process again to create a new account.