Stack AI vs Langflow vs Haystack vs Zapier

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

Your tool
Stack AI
vs
Competitor 1
Langflow
Competitor 2
Haystack
Competitor 3
Zapier
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Make main Remove
Competitor Zapier
zapier.com
Connect your apps without writing code
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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
215.3Kvisits/mo
—
5.3Mvisits/mo
MoM change
▼ 57.9%
▼ 0.7%
—
▼ 5.9%
6-month growth
-93.7%
-4.9%
—
-26.7%
Global rank web
#1,700,092
#217,191
—
#6,051
Avg. last 3 months
13.9K
225.2K
—
5.5M
Bounce rate lower is better
39%
44%
—
38%
Pages / visit
1.8
2.2
—
10.2
Visit duration
14s
1m 04s
—
6m 43s
Traffic sources
—
● Direct 76% · ● Referral 24%
—
● Direct 81% · ● Referral 12%
Stack AILangflowHaystackZapier
01.8M3.6M5.5M7.3MStack 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 · 215.3KZapier · 6.3MZapier · 5.9MZapier · 6.8MZapier · 6.5MZapier · 7.3MZapier · 6.6MZapier · 6MZapier · 5.5MZapier · 5.7MZapier · 5.3M1K10K100K1M10MStack 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 · 215.3KZapier · 6.3MZapier · 5.9MZapier · 6.8MZapier · 6.5MZapier · 7.3MZapier · 6.6MZapier · 6MZapier · 5.5MZapier · 5.7MZapier · 5.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
—
Freemium
Starting price
Free tier
Free
—
$19.99per month · free tier available
Free tier
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Free trial
–
–
API access
–
–
Plans
—
—
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Free FreeProfessional $19.99/moTeam $69/moEnterprise Custom
Capabilities input → output
Input
DataDocumentsText
Text
CodeDocuments
Text
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
3
9
2
6
Agents
No-code
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Workflows
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Agent creation
–
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Chatbots
–
–
–
Developer tools
–
–
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Development
–
–
–
LLM development
–
–
–
APIs
–
–
–
Lead generation
–
–
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Lead management
–
–
–
Productivity
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
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.