Liminary vs Stacks vs ClassMind vs Knowledge Plane

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

Your tool
Liminary
vs
Competitor 1
Stacks
Competitor 2
ClassMind
Competitor 3
Knowledge Plane
Compare
4 tools · best value per row highlighted
Your tool Liminary
liminary.io
Ever open a browser tab to find something you saved three months ago, only to spend ten minutes hunting through bookmarks
Remove
Competitor Stacks
betterstacks.com
Stacks is a personal AI workspace that gathers what you find online into one searchable place.
Make main Remove
Competitor ClassMind
classmind.app
ClassMind is an AI-powered smart educational tool specifically designed for educators to create, organize, and enhance learning materials. It offers a suite of features to streamline classroom prepara
Make main Remove
Competitor Knowledge Plane
knowledgeplane.io
Engineering teams watch their AI tools hallucinate outdated project details
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
23.3Kvisits/mo
6.3Kvisits/mo
—
—
MoM change
▼ 18.4%
▼ 8.4%
▲ 11.7%
—
6-month growth
-10.4%
-50.8%
+84.2%
—
Global rank web
#1,028,276
#3,182,249
#13,515,168
—
Avg. last 3 months
24.3K
6.1K
641
—
Bounce rate lower is better
37%
41%
0%
0%
Pages / visit
2.0
1.7
—
—
Visit duration
51s
6s
—
—
Traffic sources
—
—
—
—
LiminaryStacksClassMindKnowledge Plane
09.3K18.6K27.9K37.2KLiminary · 37.2KLiminary · 16KLiminary · 26KLiminary · 18.1KLiminary · 28.2KLiminary · 21.2KLiminary · 28.5KLiminary · 23.3KStacks · 7KStacks · 12.2KStacks · 12.8KStacks · 8.7KStacks · 5.7KStacks · 5.1KStacks · 6.8KStacks · 6.3KClassMind · 551ClassMind · 938ClassMind · 1.9KClassMind · 1.2KClassMind · 909ClassMind · 1K1001K10K100KLiminary · 37.2KLiminary · 16KLiminary · 26KLiminary · 18.1KLiminary · 28.2KLiminary · 21.2KLiminary · 28.5KLiminary · 23.3KStacks · 7KStacks · 12.2KStacks · 12.8KStacks · 8.7KStacks · 5.7KStacks · 5.1KStacks · 6.8KStacks · 6.3KClassMind · 551ClassMind · 938ClassMind · 1.9KClassMind · 1.2KClassMind · 909ClassMind · 1KDec '25Jan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Free
Freemium
Starting price
$29per month · free tier available
$9per month
Free
$19per month · free tier available
Free tier
–
Free trial
–
–
–
API access
–
–
–
Plans
Explorer FreePro $29/moTeam $50/mo
Be Productive $89/yrBe Collaborative $199/yrBe Creative $349/yr
—
—
Capabilities input → output
Input
Web pagesTextDocuments
Web pagesTextDocuments
DocumentsText
TextDocumentsCode
Output
Text
Text
TextSlidesDocuments
Text
Skill level
Intermediate
Beginner-friendly
Intermediate
Intermediate
Categories
Education & LearningAI Knowledge Management
Education & LearningProductivity & OfficeAI FilesAI Knowledge Management
Education & LearningProductivity & OfficeAI Book SummarizerAI Lesson Plan Generator+2 more
Education & LearningAI Knowledge Management
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
6
11
7
Knowledge bases
–
Digital information management
–
Bookmarking
–
–
Chrome extensions
–
–
Note taking
–
–
Book summaries
–
–
–
Curriculum integration
–
–
–
Interactive quizzes
–
–
–
Knowledge graphs
–
–
–
Lesson generation
–
–
–
Lesson plans
–
–
–
Presentations
–
–
–
Quiz generation
–
–
–
Teaching support
–
–
–
Knowledge
–
–
–
Knowledge maps
–
–
–
Knowledge sourcing
–
–
–
Question generation
–
–
–
Summarizing
–
–
–
Education
–
–
–
Knowledge exchange
–
–
–
Knowledge exploration
–
–
–
Web search summaries
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

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.