Stepper vs Stack AI 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
Stack AI
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
Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor Windmill
windmill.dev
Windmill is an open-source, code-first orchestration platform for internal software.
Make main Remove
Competitor BABULDRR AI
buldrr.com
AI Automation
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.9Kvisits/mo
6.3Kvisits/mo
—
37.1Kvisits/mo
MoM change
▲ 34.2%
▼ 57.9%
—
▼ 2.2%
6-month growth
+519.2%
-93.7%
—
+78.0%
Global rank web
#677,321
#1,700,092
—
#905,136
Avg. last 3 months
38.1K
13.9K
—
38.2K
Bounce rate lower is better
40%
39%
—
37%
Pages / visit
2.0
1.8
—
1.6
Visit duration
47s
14s
—
9s
Traffic sources
—
—
—
● Direct 95% · ● Referral 5%
StepperStack AIWindmillBULDRR AI
042K84K126K167.9KStepper · 8.1KStepper · 15.4KStepper · 20.2KStepper · 27KStepper · 37.2KStepper · 49.9KStack 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 · 6.3KBULDRR 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 · 49.9KStack 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 · 6.3KBULDRR AI · 20.9KBULDRR AI · 11.1KBULDRR AI · 33.9KBULDRR AI · 39.4KBULDRR AI · 38KBULDRR AI · 37.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
—
Starting price
$19per month · free tier available
Free tier
$120per month · free tier available
—
Free tier
–
Free trial
–
–
API access
–
Plans
Free FreePro $19/moTeam Coming soon
—
Free and Open-source (self-host) FreeEnterprise $120/mo
—
Capabilities input → output
Input
Text
DataDocumentsText
Code
Text
Output
Apps
Apps
Apps
AppsImagesVideo
Skill level
Intermediate
Intermediate
Advanced
Intermediate
Categories
Productivity & OfficeAI Workflow
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI Developer ToolsAI Workflow+1 more
Productivity & OfficeAI Workflow
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
4
7
9
8
Workflows
Process automation
Business automation
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No-code
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Agents
–
–
Agent creation
–
–
Self hosted
–
–
–
APIs
–
–
–
Blog automation
–
–
–
Developer tools
–
–
–
Email follow-ups
–
–
–
Finance workflow automation
–
–
–
Lead management
–
–
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LinkedIn automation
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–
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Workflow deployment
–
–
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Workflow optimization
–
–
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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
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.