Roast my pre-launch landing page: local PDF/DOCX comparison for Windows

I’m validating a small Windows desktop tool before building it.

Redline Local would compare PDF and DOCX files entirely on-device:

- PDF ↔ PDF

- DOCX ↔ DOCX

- PDF ↔ DOCX

- side-by-side text differences

- exportable redline

- no uploads, no cloud processing

Planned price: €39 one-time.

I’m trying to validate two things:

1. Is the problem/value proposition immediately clear?

2. Does €39 one-time feel reasonable for this?

Landing page:

The product is not built yet — this is intentionally a pre-launch validation test.

Brutal feedback is welcome, especially if you work with contracts, reviewed documents, procurement, legal work, or translation/review.

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