What do I get for $15 a year?

Markup (the Word-style combined document) and Pages (side-by-side Word, ODT, RTF and PDF). Folder comparison, text editing, semantic JSON/XML compare, and image compare stay available without that licence.

Not yet. The commercial details are not finished. This page is the planned price and the planned split of features. Email iazarny@yahoo.com if you want to be told when checkout exists.

Buy a licence

The plan is simple, and it is not finished. DiffMan will start with every feature for three months. After those three months, the Word-style markup view and the side-by-side document pages will turn off unless you have a licence. That licence is $15 USD per year. There is no checkout on this page yet. If you want a note when it exists, write to iazarny@yahoo.com.

Always included

After the introduction, and with no licence:

Folder comparison, copy, ignore rules
Text diff and editing
Semantic JSON, YAML, TOML, XML, INI, properties
Document Text mode (extracted words, read-only)

Document licence

$15 / year

On top of the above, after month three:

Markup — Word, OpenDocument, RTF and PDF, including mixed pairs (Word against PDF)
Image comparison

Planned price. Not a live purchase. No automatic renewal until checkout exists and you agree to it.

The first three months

Download app and use folder compare, text, semantic, images, document text, markup and pages without paying. That stretch is there so you can see whether the document views are worth $15 later. When the three months end, Markup and Pages stop until a licence is present. Everything else keeps working. The exact clock (first launch, first compare, or a signed-in date) is not locked yet; this page will say so when it is.

What you are paying for

Legal and contract work is where the document views earn their keep: unchanged words stay, “United Kingdom” versus “England” is a short mark, a deleted sentence stays visible with a strike. Pages keeps each original layout so you can still see fonts and page breaks. Building and keeping th at is the part that would go away without a licence. Folder trees, ordinary text , JSON/XML meaning, and pictures do not.

Markup view of a contract: deleted words in red with strikethrough, inserted words in green with underline, page thumbnails on the right. — Markup. Deleted words are struck through, inserted words are underlined. After three months this view needs a licence.

Pages view: original contract on the left, revised contract on the right, changed words marked, preview strip on the right. — Markup. Deleted words are struck through, inserted words are underlined. After three months this view needs a licence.

What is still undecided

How payment will run (direct card, Apple, something else).
Whether a licence is per Mac, per person, or per organisation.
Volume or academic pricing.
Whether a Windows licence, when Windows exists, is the same $15 or a separate product.

If those choices change the price or the feature split, this page will change before anyone is charged. Do not treat a screenshot of this page as an invoice.

Download while you wait

Download DiffMan 1.0 for Mac Download DiffMan 1.0 for Windows

macOS 26.6 or later · signed and notarized · sandboxed.

Email about a licence

Questions

Is this a subscription that bills itself?

Not until checkout exists and the terms say so. $15 per year is the planned price for Markup and Pages, not a charge happening today.

What if I only compare folders and source files?

You do not need this licence for that. Folder, text, semantic and image comparison are meant to stay available.

Do I still get extracted document text without a licence?

Yes. After month three, the Text mode of Word, ODT, RTF and PDF should remain. Markup and Pages are the ones that would switch off.

Can I pay more to get a different set of features?

Not at the moment. The commercial version is not designed yet beyond this split. If you have a case (a team, air-gapped machines, a need to keep Markup without Pages), email and say so.