Scanning solved one problem
A scanner app is very good at answering: how do I turn this piece of paper into a clean digital file?
Adobe Scan captures documents and photos, creates PDFs, and uses OCR so the resulting file can be searchable. From there, Acrobat can take over for filling, signing, commenting, editing, and sharing.
That is a strong workflow when the PDF is the product you want.
When Adobe Scan is the better choice
Use Adobe Scan when the main job is digitization.
You have paper. You need a high-quality PDF. Maybe you want to sign it, send it, archive it, or work on it in Acrobat.
A dedicated scanner is built for exactly that.
When Panza is the better choice
Use Panza when the scan is only the beginning.
The document is going to matter again, but usually not because you want to admire the PDF. You need a number, a date, a code, a name, or another small piece of information inside it.
Panza brings that useful layer forward as a card and keeps the original document behind it for the moments when the full source matters.
Capture and retrieval are different jobs
A beautiful PDF can still end up called scan_0047.pdf in a folder you forget about.
Panza does not try to win the scanning contest. It tries to make the result useful later.
That is the distinction: scanner apps optimize the document coming in; Panza optimizes the document coming back out when real life asks for it.