When you are adding record; income, expense or transfer, you can attach add up to 3 pictures, such as receipts or photos of the food or etc.
You will see the camera button next to the Memo section that browses photos from the gallery or takes a new picture.
* Note *
Even if photos are deleted from "/Camera" folder, the one in Money Manager would remain.
However, if you delete photos from "/MoneyManager" folder, they will be deleted completely.
Photos are not to be backed up automatically with regular backup data.
If you change your device or factory reset your phone, please ensure to transfer the photos separately. Using Google photo, you can keep "/Money Manager" folder in Cloud storage.