Stepper vs Relay.app vs Windmill vs BULDRR AI

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

Your tool
Stepper
vs
Competitor 1
Relay.app
Competitor 2
Windmill
Competitor 3
BABULDRR AI
Compare
4 tools · best value per row highlighted
Your tool Stepper
stepper.io
Building automated workflows traditionally requires either coding skills or wrestling with complex visual builders
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Competitor 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 Windmill
windmill.dev
Windmill is an open-source, code-first orchestration platform for internal software.
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Competitor BABULDRR AI
buldrr.com
AI Automation
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Traffic estimated monthly website traffic
Monthly visits
49.9Kvisits/mo
158.1Kvisits/mo
—
37.1Kvisits/mo
MoM change
▲ 34.2%
▼ 32.7%
—
▼ 2.2%
6-month growth
+519.2%
-30.9%
—
+78.0%
Global rank web
#677,321
#182,862
—
#905,136
Avg. last 3 months
38.1K
187.1K
—
38.2K
Bounce rate lower is better
40%
38%
—
37%
Pages / visit
2.0
2.8
—
1.6
Visit duration
47s
1m 15s
—
9s
Traffic sources
—
● Direct 93% · ● Referral 4%
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● Direct 95% · ● Referral 5%
StepperRelay.appWindmillBULDRR AI
068K136K204K272KStepper · 8.1KStepper · 15.4KStepper · 20.2KStepper · 27KStepper · 37.2KStepper · 49.9KRelay.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 · 158.1KBULDRR AI · 20.9KBULDRR AI · 11.1KBULDRR AI · 33.9KBULDRR AI · 39.4KBULDRR AI · 38KBULDRR AI · 37.1K1K10K100K1MStepper · 8.1KStepper · 15.4KStepper · 20.2KStepper · 27KStepper · 37.2KStepper · 49.9KRelay.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 · 158.1KBULDRR AI · 20.9KBULDRR AI · 11.1KBULDRR AI · 33.9KBULDRR AI · 39.4KBULDRR AI · 38KBULDRR AI · 37.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
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Starting price
$19per month · free tier available
$19per month · free tier available
$120per month · free tier available
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Free tier
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Free trial
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–
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API access
–
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Plans
Free FreePro $19/moTeam Coming soon
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Free and Open-source (self-host) FreeEnterprise $120/mo
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Capabilities input → output
Input
Text
Text
Code
Text
Output
Apps
Apps
Apps
AppsImagesVideo
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Productivity & OfficeAI Workflow
Productivity & OfficeAI AgentAI Workflow
Development & CodeProductivity & OfficeAI Developer ToolsAI Workflow+1 more
Productivity & OfficeAI Workflow
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
4
6
9
8
Workflows
Process automation
Business automation
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Agent creation
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Agents
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No-code
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Automation
–
–
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Self hosted
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–
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APIs
–
–
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Blog automation
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–
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Developer tools
–
–
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Email follow-ups
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–
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Lead management
–
–
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LinkedIn automation
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–
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Workflow deployment
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–
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Workflow optimization
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–
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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
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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.