Stack AI vs Appian vs Langflow vs CrewAI

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

Your tool
Stack AI
vs
Competitor 1
Appian
Competitor 2
Langflow
Competitor 3
CrewAI
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Appian
appian.com
Appian is an enterprise platform for process automation that orchestrates AI agents, existing systems and people from one place.
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Competitor Langflow
langflow.org
Drag and drop AI
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Competitor CrewAI
crewai.com
CrewAI is a multi-agent platform that covers the full agent lifecycle for businesses: discover what to automate, build agents, govern them in production and optimize them over time.
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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
215.3Kvisits/mo
476.6Kvisits/mo
MoM change
▼ 57.9%
—
▼ 0.7%
▼ 10.3%
6-month growth
-93.7%
—
-4.9%
-5.3%
Global rank web
#1,700,092
—
#217,191
#107,487
Avg. last 3 months
13.9K
—
225.2K
564.3K
Bounce rate lower is better
39%
—
44%
46%
Pages / visit
1.8
—
2.2
2.6
Visit duration
14s
—
1m 04s
1m 32s
Traffic sources
—
—
● Direct 76% · ● Referral 24%
● Direct 75% · ● Referral 23%
Stack AIAppianLangflowCrewAI
0171.3K342.6K513.9K685.2KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6K1K10K100K1MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
—
Free
Free
Starting price
Free tier
—
Free
Free
Free tier
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Free trial
–
–
–
API access
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Plans
—
—
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Basic FreeEnterprise $0
Capabilities input → output
Input
DataDocumentsText
DataDocumentsText
Text
Text
Output
Apps
Apps
Apps
AppsCode
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+2 more
Tasks what each tool can do · 4 shared · core   partial
Tasks covered
7
8
9
9
Agents
No-code
Workflows
Agent creation
Process automation
–
–
Business automation
–
–
Developer tools
–
–
Development
–
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Finance workflow automation
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–
Agent collaboration
–
–
–
Agent management
–
–
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Chatbots
–
–
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LLM development
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–
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APIs
–
–
–
Agent testing
–
–
–
Document data extraction
–
–
–
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
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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.