Stack AI vs Lambda vs StartKit vs Activepieces

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

Your tool
Stack AI
vs
Competitor 1
Lambda
Competitor 2
StartKit
Competitor 3
Activepieces
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
Make main Remove
Competitor StartKit
startkit.ai
StartKit hands you the entire backend so you can ship your product faster
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Competitor Activepieces
activepieces.com
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
1.3Kvisits/mo
221.7Kvisits/mo
MoM change
▼ 57.9%
—
▲ 79.8%
▲ 1.8%
6-month growth
-93.7%
—
-36.9%
-10.0%
Global rank web
#1,700,092
—
—
#174,361
Avg. last 3 months
13.9K
—
756
226.6K
Bounce rate lower is better
39%
—
38%
39%
Pages / visit
1.8
—
1.0
3.8
Visit duration
14s
—
—
2m 39s
Traffic sources
—
—
—
● Direct 74% · ● Referral 24%
Stack AILambdaStartKitActivepieces
061.6K123.1K184.7K246.2KStack 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 · 6.3KStartKit · 1.6KStartKit · 1.4KStartKit · 2.2KStartKit · 2KStartKit · 1.6KStartKit · 181StartKit · 300StartKit · 704StartKit · 1.3KActivepieces · 209.7KActivepieces · 239.2KActivepieces · 236KActivepieces · 187.9KActivepieces · 246.2KActivepieces · 223.6KActivepieces · 218.4KActivepieces · 240.1KActivepieces · 217.9KActivepieces · 221.7K1001K10K100K1MStack 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 · 6.3KStartKit · 1.6KStartKit · 1.4KStartKit · 2.2KStartKit · 2KStartKit · 1.6KStartKit · 181StartKit · 300StartKit · 704StartKit · 1.3KActivepieces · 209.7KActivepieces · 239.2KActivepieces · 236KActivepieces · 187.9KActivepieces · 246.2KActivepieces · 223.6KActivepieces · 218.4KActivepieces · 240.1KActivepieces · 217.9KActivepieces · 221.7KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
Free tier
—
$149per month
$20per month · free tier available
Free tier
–
–
Free trial
–
–
–
API access
–
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Plans
—
On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
Starter $149Growth $249Concierge $0
Free FreePlus $20/moTeam $200/mo
Capabilities input → output
Input
DataDocumentsText
CodeData
Text
Text
Output
Apps
Apps
Code
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Productivity & OfficeAI AgentAI Workflow
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
3
8
4
Agents
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No-code
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Workflows
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Agent creation
–
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Developer tools
–
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GPU infrastructure
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–
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Backend development
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–
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Business automation
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–
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Process automation
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–
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Coding
–
–
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Development
–
–
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Finance workflow automation
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–
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Frontend development
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–
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LLM development
–
–
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Model training
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–
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Payments
–
–
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SaaS product launches
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 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.