A: Hello, thanks for your question. Do you refer to the difference between https://appsumo.com/products/updf-converter-pdf-converter-with-ocr/ and UPDF?
The first one is sold a t $19.99 which is a simple PDF converter. You can only convert PDFs.
However, UPDF at $39.99 is an all-in-one PDF solution that contains PDF converter, editor, annotator and everything.
They are different. You can select the right one you need. ：）