My point is I have to question the necessity for Data Shredder. By the way when I searched the App Store for "Data Shredder" I found five apps that purport to perform file shredding, or secure file deletion ranging in price from $3 to $10 and I don't believe any of them were the app you mentioned.
Your point confirms my reasoning in having asked the question in the first place.
Data Shredder for iOS costs $30 and is not in the App Store. You missed High Secure Shredder, which is, and costs $50, but at least doesn't purport to be SSD specific.
