
Free / Open-sourceThe AI workspace where teams and agents get work done together

Goodnotes records 3,227,341 monthly visits with +10.8% month-over-month growth and Freemium, Free Trial pricing. Sofos records 0 monthly visits with 0% growth and Contact for Pricing pricing.

Local-first desktop workspace where a doc editor and your AI coding agent share the same files
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | goodnotes.com | sofos.co |
| Pricing Model | Freemium, Free Trial | Contact for Pricing |
| Monthly Visits | 3.23M (3,227,341) | 0 (0) |
| MoM Traffic Delta |
| +314.75K (+10.8%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (33.8%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 1.64M | 0 |
|---|
| User Rating | 4.4 | 4.2 |
|---|
| Supported Platforms | Website | Website |
|---|

Handwritten notes, PDF markup, and AI study tools on one canvas
Low-latency ink with palm rejection, cross-out to erase, and handwriting-to-text conversion keeps writing close to pen on paper.
Import contracts, papers, or textbooks and mark them up by hand, with searchable annotations and clean exports.
Search across typed text, handwriting, and sketches, and turn notes into summaries, mind maps, or structured plans.
Work together in shared notebooks, documents, and whiteboards simultaneously, without version conflicts or file ping-pong.

Local-first desktop workspace where a doc editor and your AI coding agent share the same files
A familiar document editor sits alongside an AI agent that reads and writes the same files, so drafts, edits and research stay in a single place.
Sofos does not sell AI. It runs Claude Code or Codex against your local folder using your own subscription, and you can switch between them from the chat footer.
Documents are ordinary Markdown files in a folder on your Mac, compatible with Git, Obsidian and VS Code, with no proprietary format or lock-in.
Downloadable skill files teach the agent repeatable, role-specific jobs such as PRD-to-Jira epics, launch announcement kits and QBR deck builders.

Free / Open-sourceThe AI workspace where teams and agents get work done together


Free / Open-sourceThe AI coding agent for building ambitious software
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.

SpecialistTurns course materials into interactive AI study tools, but focuses less on handwritten digital notebooks.

SpecialistStronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
SpecialistConverts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
Free / Open-sourceA polished space for notes, tasks, and documents that follows you across every device.

Free / Open-sourceAn AI supercompanion that handles tasks, code and creative work end to end


Free / Open-sourceThe desktop video editor built for working with AI coding agents


Organizes notes into interconnected typed objects rather than traditional notebooks, but lacks handwritten ink support.
SpecialistUses an infinite visual canvas for note organization, but lacks Goodnotes' paper templates and PDF annotation polish.

Offers spatial whiteboards for organizing complex research, but lacks Goodnotes' freehand handwriting stylus support.
Free / Open-sourceThe AI coding agent for building ambitious software
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.
SpecialistTurns course materials into interactive AI study tools, but focuses less on handwritten digital notebooks.
SpecialistStronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
SpecialistConverts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
Free / Open-sourceA polished space for notes, tasks, and documents that follows you across every device.
Free / Open-sourceAn AI supercompanion that handles tasks, code and creative work end to end
Free / Open-sourceThe desktop video editor built for working with AI coding agents
Organizes notes into interconnected typed objects rather than traditional notebooks, but lacks handwritten ink support.
SpecialistUses an infinite visual canvas for note organization, but lacks Goodnotes' paper templates and PDF annotation polish.
Offers spatial whiteboards for organizing complex research, but lacks Goodnotes' freehand handwriting stylus support.