ScreenInk

InkPen for macOS

A fast floating pen for every Mac screen.

Turn any app, slide, PDF, browser tab, or video call into a live teaching surface. Write, highlight, add shapes, drop graph paper, paste questions, and return to normal clicks instantly.

Download free Mac beta Explore the toolbar
macOS 13+ Apple Silicon Intel Mac Multi-display
Instant on-screen inkKeep the floating pen ready without covering your work.
Native and lightweightBuilt with AppKit so it feels at home on macOS.
Private by designYour screen, drawings, files, and lessons stay on your Mac.

Interactive toolbar

One compact toolbar. A full teaching surface.

InkPen keeps the controls small, direct, and close to your cursor. Click each tool below to see how it helps during a live class, demo, or meeting.

Online class notes

Question 4

Show that the line intersects the curve at two points.

Feature set

Built for the moments where explaining clearly matters.

01

Floating pen dock

A small draggable pen icon opens the toolbar and keeps the screen clear while presenting.

02

Select mode

Switch back to normal cursor control immediately so you never get trapped in drawing mode.

03

Pen cursors

Use the normal Mac cursor, a color-matched pen nib, or a plus cursor for precise pointing.

04

Color palette

Choose any color, save up to 20 swatches, and drag colors to arrange your palette.

05

Shapes and graph

Draw lines, arrows, rectangles, circles, polygons, 3D-style shapes, and coordinate grids.

06

Move and resize

Move pasted images, text, and graph objects. Resize from corners while keeping work clean.

07

Undo, redo, clear

Correct mistakes during a live class or meeting without stopping the explanation.

08

Export annotation

Save the current annotation layer when you need a quick record of the explanation.

Use cases

For classrooms, calls, walkthroughs, and quick visual thinking.

Online teaching

Annotate over worksheets, browser pages, graphs, PDFs, and live class material.

Presentations

Circle dashboard numbers, draw arrows on slides, and highlight decisions during calls.

Support and demos

Guide someone through a screen by pointing, marking, and clearing quickly.

Privacy and beta tracking

Helpful beta numbers, zero lesson content.

InkPen sends a small anonymous launch ping once per day so we can understand how many beta devices are active.

  • Sent: install ID, app version, macOS version, Mac model, architecture, display count.
  • Not sent: screenshots, drawings, files, app content, names, emails, or exact activity.
  • Screenshot capture is intentionally removed from the public beta and planned for a later signed release.

Public beta

Start writing over your Mac in seconds.

Install the beta, open InkPen from Applications, and the floating pen appears on your screen. The public beta is free while the first tester group helps shape the product.

macOS 13 Ventura or newer Apple Silicon and Intel Works with one or more displays
Download .pkg Download .dmg

ScreenInk platform

InkPen is the first step in the ScreenInk teaching toolkit.

ScreenInk will become the home for focused visual tools for teachers, tutors, and presenters. InkPen launches first; a dedicated math board can join the product family later.

Developer

Developed by Ematics.

InkPen is developed by Ematics, a dedicated software service provider building practical digital products for education, productivity, and business workflows.

Product developer: Anand Mohan.