
Offers superior reasoning and advanced coding capabilities compared to Duck.ai, but collects user chat data and requires account login.
#1Duck.ai records 26,431,539 monthly visits with +10.7% month-over-month growth and Free pricing. Goodnotes records 3,227,341 monthly visits with +10.8% growth and Freemium, Free Trial pricing.

Handwritten notes, PDF markup, and AI study tools on one canvas
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | duck.ai | goodnotes.com |
| Pricing Model | Free | Freemium, Free Trial |
| Monthly Visits | 26.43M (26,431,539) | 3.23M (3,227,341) |
| MoM Traffic Delta | +2.56M (+10.7%) |
| +314.75K (+10.8%) |
| Primary Market & Share | 🇺🇸 United States (44.3%) | 🇺🇸 United States (33.8%) |
|---|
| Direct Visits / mo | 9.6M | 1.64M |
|---|
| User Rating | 4.3 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|
Private AI chat from the makers of DuckDuckGo
Choose among several leading AI assistants from a single interface instead of juggling separate apps.
Start chatting without signing up, handing over an email, or creating a profile.
Chats are designed to stay detached from your identity rather than being tied to an ad profile.
Accessible alongside the search engine and browser that already block trackers and cookie pop-ups.

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.

Offers superior reasoning and advanced coding capabilities compared to Duck.ai, but collects user chat data and requires account login.
#1
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
#2Provides exceptional analytical depth and coding assistance, but lacks Duck.ai's anonymous usage policy and data privacy guarantees.
Free / Open-sourceDelivers highly efficient open-weight model reasoning at low cost, but does not provide Duck.ai's anonymous zero-log chat experience.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Free / Open-sourceMeta's free AI assistant for answers, images and everyday tasks

SpecialistAggregates many leading language models in one chat interface, but requires user account login unlike Duck.ai's anonymous model.

SpecialistCombines multiple leading language models into a handy browser extension, but requires user accounts and lacks privacy focus.
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.

SpecialistProvides access to multiple third-party language models in one workspace, but lacks Duck.ai's strict privacy and no-logging guarantees.

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.
Offers superior reasoning and advanced coding capabilities compared to Duck.ai, but collects user chat data and requires account login.
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
Provides exceptional analytical depth and coding assistance, but lacks Duck.ai's anonymous usage policy and data privacy guarantees.
Free / Open-sourceDelivers highly efficient open-weight model reasoning at low cost, but does not provide Duck.ai's anonymous zero-log chat experience.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Free / Open-sourceMeta's free AI assistant for answers, images and everyday tasks
SpecialistAggregates many leading language models in one chat interface, but requires user account login unlike Duck.ai's anonymous model.
SpecialistCombines multiple leading language models into a handy browser extension, but requires user accounts and lacks privacy focus.
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.
SpecialistProvides access to multiple third-party language models in one workspace, but lacks Duck.ai's strict privacy and no-logging guarantees.
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.