Relay.app vs Stack AI vs Haystack vs Zapier

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

Your tool
Relay.app
vs
Competitor 1
Stack AI
Competitor 2
Haystack
Competitor 3
Zapier
Compare
4 tools · best value per row highlighted
Your tool Relay.app
relay.app
Relay.app is a platform to create AI Agents that work for you across Gmail, Notion, Salesforce, HubSpot, and 100+ other apps. Agents created in Relay.app are *actually* useful, as they're easy to cre
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Competitor Stack AI
stack-ai.com
Connect AI models visually
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.
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Competitor Zapier
zapier.com
Connect your apps without writing code
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Traffic estimated monthly website traffic
Monthly visits
158.1Kvisits/mo
6.3Kvisits/mo
—
5.3Mvisits/mo
MoM change
▼ 32.7%
▼ 57.9%
—
▼ 5.9%
6-month growth
-30.9%
-93.7%
—
-26.7%
Global rank web
#182,862
#1,700,092
—
#6,051
Avg. last 3 months
187.1K
13.9K
—
5.5M
Bounce rate lower is better
38%
39%
—
38%
Pages / visit
2.8
1.8
—
10.2
Visit duration
1m 15s
14s
—
6m 43s
Traffic sources
● Direct 93% · ● Referral 4%
—
—
● Direct 81% · ● Referral 12%
Relay.appStack AIHaystackZapier
01.8M3.6M5.5M7.3MRelay.app · 216.8KRelay.app · 241.7KRelay.app · 272KRelay.app · 229.9KRelay.app · 228.8KRelay.app · 251.1KRelay.app · 193.9KRelay.app · 168.4KRelay.app · 234.9KRelay.app · 158.1KStack 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 · 6.3KZapier · 6.3MZapier · 5.9MZapier · 6.8MZapier · 6.5MZapier · 7.3MZapier · 6.6MZapier · 6MZapier · 5.5MZapier · 5.7MZapier · 5.3M1K10K100K1M10MRelay.app · 216.8KRelay.app · 241.7KRelay.app · 272KRelay.app · 229.9KRelay.app · 228.8KRelay.app · 251.1KRelay.app · 193.9KRelay.app · 168.4KRelay.app · 234.9KRelay.app · 158.1KStack 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 · 6.3KZapier · 6.3MZapier · 5.9MZapier · 6.8MZapier · 6.5MZapier · 7.3MZapier · 6.6MZapier · 6MZapier · 5.5MZapier · 5.7MZapier · 5.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
—
Freemium
Starting price
$19per month · free tier available
Free tier
—
$19.99per month · free tier available
Free tier
–
Free trial
–
–
API access
–
–
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Plans
—
—
—
Free FreeProfessional $19.99/moTeam $69/moEnterprise Custom
Capabilities input → output
Input
Text
DataDocumentsText
CodeDocuments
Text
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Intermediate
Advanced
Intermediate
Categories
Productivity & OfficeAI AgentAI Workflow
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 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
6
7
7
6
Agents
Agent creation
–
Workflows
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No-code
–
–
Business automation
–
–
Process automation
–
–
LLM development
–
–
–
RAG
–
–
–
Automation
–
–
–
Developer tools
–
–
–
Agent memory
–
–
–
Finance workflow automation
–
–
–
Lead generation
–
–
–
Lead management
–
–
–
Productivity
–
–
–
Self hosted
–
–
–
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
–
–
–
–

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.