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CLUSTER ANNOTATION-CROSS-HANDWRITING · 4 ENTRIES · EARLIEST ENTRY 2012-09-26

Handwriting note-taking and PDF annotation apps

This cluster comprises cross-platform note-taking and PDF annotation applications that emphasize handwriting, drawing, sketching, and syncing across devices. Members typically support cloud sync and import/export of PDF, image, or SVG formats. The dated entry history, spanning from September 2012 to May 2026, shows sporadic appearances without a clear trend. Traction leaders, based on activity signal, include Drawboard PDF Annotate, Markup, Linwood Butterfly, and QuickNotes X: Notes, AI & PDF, all showing 0 stars.

Entry timeline

ENTRY TIMELINE

SEP 2012: 1DEC 2013: 1NOV 2022: 1MAY 2026: 1
SEP 2012MAY 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 hand-coded · 2 unlabelled

Operator · 3 commercial · 1 open source

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 4 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Element Note0★1 molivecommercialNote-taking app offering handwriting, PDF annotation, and light sketching with multiple brush styles, on-device search, and cross-device iCloud sync.
  2. 02Linwood Butterfly0★2 moliveopen sourceA cross-platform note-taking app for drawing, painting, and organizing ideas with import and export support for images, PDF, and SVG.
  3. 03MetaMoJi Note0★8 yrabandonedlivehand-codedcommercialCross-platform note and sketchbook app for handwriting, voice memos, and PDF annotation, with cloud sync and collaborative document editing for personal and business use.
  4. 04MetaMoJi Note Lite0★8 yrabandonedlivehand-codedcommercialCross-platform note-taking and PDF annotation app for sketching, handwriting, and scrapbooking, with cloud sync and shared drives for premium users.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.