Notability vs Open Notebook vs NotebookLM vs KnoWhiz

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Notability
vs
Competitor 1
ONOpen Notebook
Competitor 2
NotebookLM
Competitor 3
KnoWhiz
Compare
4 tools · best value per row highlighted
Your tool Notability
notability.com
Notability is a note-taking app that mixes handwriting, typed text, PDFs and audio with AI study tools.
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Competitor ONOpen Notebook
open-notebook.ai
Open Notebook is an open-source AI note-taking and research platform built around privacy.
Make main Remove
Competitor NotebookLM
notebooklm.google.com
Your docs, deeply understood
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Competitor KnoWhiz
knowhiz.us
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
159.8Mvisits/mo
5Kvisits/mo
MoM change
—
—
▼ 26.8%
▼ 4.2%
6-month growth
—
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-14.7%
-56.5%
Global rank web
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#3,544,642
Avg. last 3 months
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210.3M
6.9K
Bounce rate lower is better
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32%
38%
Pages / visit
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5.0
1.9
Visit duration
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6m 32s
22s
Traffic sources
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● Direct 81% · ● Referral 17%
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NotabilityOpen NotebookNotebookLMKnoWhiz
063.2M126.5M189.7M253MNotebookLM · 121.9MNotebookLM · 141.5MNotebookLM · 177.5MNotebookLM · 187.3MNotebookLM · 222.2MNotebookLM · 247.4MNotebookLM · 253MNotebookLM · 218.2MNotebookLM · 159.8MKnoWhiz · 706KnoWhiz · 3.8KKnoWhiz · 14.3KKnoWhiz · 14.7KKnoWhiz · 11.5KKnoWhiz · 10.5KKnoWhiz · 13KKnoWhiz · 10.4KKnoWhiz · 5.2KKnoWhiz · 5K1001K10K100K1M10M100M1BNotebookLM · 121.9MNotebookLM · 141.5MNotebookLM · 177.5MNotebookLM · 187.3MNotebookLM · 222.2MNotebookLM · 247.4MNotebookLM · 253MNotebookLM · 218.2MNotebookLM · 159.8MKnoWhiz · 706KnoWhiz · 3.8KKnoWhiz · 14.3KKnoWhiz · 14.7KKnoWhiz · 11.5KKnoWhiz · 10.5KKnoWhiz · 13KKnoWhiz · 10.4KKnoWhiz · 5.2KKnoWhiz · 5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$1per month · free tier available
Free
$4.99per month · free tier available
$1.99per month · free tier available
Free tier
Free trial
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API access
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Plans
Starter FreeLite $11.99/yrPlus $15.99/yrPro $79.99/yr+3 more
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Free FreeGoogle AI Plus $4.99/moNotebookLM Pro (Google AI Pro) $19.99/moVia Google AI Ultra $99.99/mo
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Capabilities input → output
Input
Web pagesTextDocumentsAudio
DocumentsTextWeb pages
DocumentsWeb pagesTextAudio
DocumentsWeb pagesVideo
Output
Text
AudioText
VideoTextAudio
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Education & LearningProductivity & OfficeVoice & SpeechWriting & Content+5 more
Productivity & OfficeResearch & AnalyticsVoice & SpeechAI Note Taker+2 more
Productivity & OfficeResearch & AnalyticsVideo EditingVoice & Speech+5 more
Education & LearningAI CourseAI Flashcard MakerAI Quiz Generator
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
8
8
4
Note taking
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Summarizing
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Video summaries
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Flashcards
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Quiz generation
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Research
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Podcasts
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PDF analysis
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Question generation
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Self hosted
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Study assistance
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Text to podcast
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Transcription
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Tutoring
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Class summaries
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Document summarization
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Files
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Productivity
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YouTube summaries
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 1
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
2
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.