Stack AI vs Google Opal vs Replit vs MindStudio

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

Your tool
Stack AI
vs
Competitor 1
GOGoogle Opal
Competitor 2
Replit
Competitor 3
MindStudio
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
Remove
Competitor GOGoogle Opal
opal.google
This experimental platform from Google lets you build and run AI experiments with direct ties to their ecosystem
Make main Remove
Competitor Replit
replit.com
Code, run, and deploy from your browser
Make main Remove
Competitor MindStudio
mindstudio.ai
MindStudio is a visual builder for AI agents that needs no coding but can be extended with code when a project calls for it.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
1.2Mvisits/mo
11.9Mvisits/mo
—
MoM change
▼ 57.9%
▼ 6.1%
▼ 9.4%
—
6-month growth
-93.7%
-57.1%
-7.3%
—
Global rank web
#1,700,092
#37,425
#3,961
—
Avg. last 3 months
13.9K
1.3M
12.6M
—
Bounce rate lower is better
39%
35%
41%
—
Pages / visit
1.8
4.9
5.2
—
Visit duration
14s
4m 01s
6m 40s
—
Traffic sources
—
● Direct 80% · ● Referral 19%
● Direct 89% · ● Referral 8%
—
Stack AIGoogle OpalReplitMindStudio
03.4M6.8M10.2M13.6MStack 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 · 6.3KGoogle Opal · 3.3MGoogle Opal · 3.5MGoogle Opal · 2.6MGoogle Opal · 2.7MGoogle Opal · 3MGoogle Opal · 2.1MGoogle Opal · 1.6MGoogle Opal · 1.2MGoogle Opal · 1.2MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9M1K10K100K1M10M100MStack 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 · 6.3KGoogle Opal · 3.3MGoogle Opal · 3.5MGoogle Opal · 2.6MGoogle Opal · 2.7MGoogle Opal · 3MGoogle Opal · 2.1MGoogle Opal · 1.6MGoogle Opal · 1.2MGoogle Opal · 1.2MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
Free tier
—
$20per month
$16per month · free tier available
Free tier
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Free trial
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–
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API access
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Plans
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Core $20/moPro $100/moEnterprise Custom
Free FreeIndividual $16/moBusiness Custom
Capabilities input → output
Input
DataDocumentsText
Text
Text
AudioDocumentsText
Output
Apps
Apps
AppsCode
Apps
Skill level
Intermediate
Advanced
Intermediate
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI App BuilderAI Workflow
Development & CodeAI App BuilderAI Coding AssistantAI Website Builder
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
4
5
7
No-code
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Workflows
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Agents
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Agent creation
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Coding
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–
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Business automation
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–
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Debugging
–
–
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Development
–
–
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Process automation
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–
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Prototyping
–
–
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Website building
–
–
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Backend development
–
–
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Developer tools
–
–
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Finance workflow automation
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–
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MCP
–
–
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Model routing
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 2
▲ 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.