vs Sigilla

Sigilla brings the good part back. ZeroMark lets the rest go.

Q: Can I use both?

Yes. Decide the X bookmarks here. Paste the links worth quoting into Sigilla, where the highlights live.

Sigilla calls itself a calm source library for serious readers. You save an article, a PDF, a newsletter or a video, highlight the passage you may use, and it stays tied to its URL, author and saved date. An optional review loop, built on the SM-2 spaced repetition schedule, asks you to rate a source from one to five stars and brings the useful ones back at spaced intervals. Its own line is "Keep less." We agree with that line. Sigilla keeps less by saving passages. ZeroMark keeps less by deciding every bookmark until the open count reads zero.

Pick Sigilla if you read to write: highlights with their source attached, citation-ready output, Pocket and Instapaper imports, and a review schedule for what you mean to remember. It does that better than we do, and its free plan saves unlimited articles. Pick ZeroMark if the pile is bookmarks and the win is a shorter list. Whether Sigilla reads bookmarks was not on the pages we read.

We make ZeroMark. Every fact about Sigilla below comes from their own site, checked 3 November 2026, and linked in Sources. If we have a fact wrong, tell us and we will correct it.

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Free for your latest 150 saves. $4.99 a month, or $39 a year, reads them all.

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At a glance

	Sigilla	ZeroMark
Job	Save passages and reuse them	Finish an bookmark queue
Sources	Articles, PDFs, newsletters and videos, by a Chrome clipper or a pasted link	bookmarks, read-only
Coming back	Optional SM-2 review: rate a source 1 to 5 stars and see it again later	Snooze for a week, then it is back in the queue
AI	Summaries, 5 a month free and unlimited on Premium, plus semantic search and Ask AI on Premium	A summary on every save, then a verdict
Export	Markdown and JSON, for Obsidian, Notion and Roam	Notion, Obsidian, or a file
Mobile	The web app in a mobile browser. Native apps are on their roadmap	The web app, built for the phone too
X bookmarks	Not on the pages we read	Yes. Read-only
Price	Free plan. Premium $39.99 a year	$4.99 a month or $39 a year, with a free plan

What Sigilla does better

Highlights and notes that keep their source: the URL, the author, the saved date, and the paragraph around the quote.
A spaced review schedule for the sources you want to remember, which we do not have.
Articles, PDFs and newsletters, plus imports from Pocket and Instapaper.
A free plan that saves unlimited articles.

Where ZeroMark is different

A summary on every save before you see it, including the quoted post a reaction is about, plus why you kept it.
One decision per save: done, let go, or snooze for a week. Undo walks the sitting back. The open queue ends on a Zero card.
Order comes from your own finish rate: what you mark done against what you let go.
Keeps can leave for Notion, Obsidian, or a file. Stopping payment does not delete what is already read.
Claude, ChatGPT and Gemini can read those keeps through the Living Memory connector. Read-only, your library only.
The connection is read-only. Triage stays inside ZeroMark. Nothing is posted, liked, followed, or removed on .

Where ZeroMark falls short

No highlights, no citations, and no spaced review.
bookmarks only. Not a home for articles or PDFs.

Pricing, side by side

Sigilla: A free plan with no card. Premium was $39.99 a year on their pricing page, which they put at $3.33 a month. Their features page also listed $5.99 a month standard and an early bird $3.99 a month for the first 100 users. A 30-day money-back guarantee covers the first payment. Read the page you check out on. ZeroMark: Free for your latest 150 saves, no card and no clock. $4.99 a month or $39 a year reads the library your connection returns. A 30-day refund covers the first paid charge. Card payments go through Stripe. Prices change. Check both before you pay.

Switching, or using both

Keep Sigilla if it already does a job you want, such as search, backup, or a digest.
Connect on ZeroMark. The connection is read-only, so the list on stays as it is.
Clear your latest saves on the free plan. Decide each one: done, let go, or snooze for a week.
Send keeps to Notion, Obsidian, or a file. Nothing on is deleted by ZeroMark.
Claude, ChatGPT or Gemini can read the keeps through the Living Memory connector.

Who should pick which

If you read to make something, an essay, a brief, a talk, Sigilla is built for that, and a review schedule is its way of keeping what matters. If you saved a thousand posts and want the list to end, ZeroMark treats the ending as the product. Their yearly price and ours are close, for two different jobs.

Questions people ask

Does Sigilla read bookmarks?

Not on the pages we read on 3 November 2026. It saves web articles through a Chrome clipper or a pasted link. ZeroMark reads bookmarks, read-only.

Does Sigilla sort saves into Read Soon and Maybe Later?

Not on the pages we read. Its features page lists triage and categorizing, and an optional review where you rate a source from 1 to 5 stars and it comes back on a schedule.

Is a review schedule the same as reaching zero?

No. A review brings a source back on purpose, which suits a source you want to remember. Zero means each save was decided once: kept, let go, or snoozed for a week.

What does Sigilla cost?

A free plan, and Premium at $39.99 a year on their pricing page. ZeroMark is Free for your latest 150 saves, no card and no clock. $4.99 a month or $39 a year reads the library your connection returns. A 30-day refund covers the first paid charge. Card payments go through Stripe.

Can I use both?

Yes. Decide the bookmarks here. Paste the links worth quoting into Sigilla, where the highlights live.

Sources

Checked 3 November 2026.

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