Dify vs Unitlab Annotate vs Lambda vs Stack AI

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

Your tool
Dify
vs
Competitor 1
Unitlab Annotate
Competitor 2
Lambda
Competitor 3
Stack AI
Compare
4 tools · best value per row highlighted
Your tool Dify
dify.ai
AI apps without code
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Competitor Unitlab Annotate
unitlab.ai
Make main Remove
Competitor Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1Mvisits/mo
7.2Kvisits/mo
—
6.3Kvisits/mo
MoM change
▼ 16.6%
▲ 76.6%
—
▼ 57.9%
6-month growth
-30.6%
+37.1%
—
-93.7%
Global rank web
#39,510
#2,769,635
—
#1,700,092
Avg. last 3 months
1.1M
5.1K
—
13.9K
Bounce rate lower is better
41%
62%
—
39%
Pages / visit
4.4
1.1
—
1.8
Visit duration
6m 40s
1m 41s
—
14s
Traffic sources
● Direct 84% · ● Referral 15%
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—
—
DifyUnitlab AnnotateLambdaStack AI
0368.2K736.4K1.1M1.5MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MUnitlab Annotate · 6.4KUnitlab Annotate · 5.3KUnitlab Annotate · 4.3KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 7.2KStack 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 · 6.3K1K10K100K1M10MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MUnitlab Annotate · 6.4KUnitlab Annotate · 5.3KUnitlab Annotate · 4.3KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 7.2KStack 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 · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
Freemium
Starting price
$590per month · free tier available
$89per month · free tier available
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Free tier
Free tier
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Free trial
–
–
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API access
–
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Plans
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
Free FreeActive $99/moPro $195/mo
On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
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Capabilities input → output
Input
DocumentsText
AudioDocumentsImagesTextVideo
CodeData
DataDocumentsText
Output
Apps
Data
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
7
2
7
Agents
–
–
No-code
–
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Workflows
–
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Agent creation
–
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LLM development
–
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Data labeling
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–
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GPU infrastructure
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–
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Image annotation
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–
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Business automation
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–
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Chatbots
–
–
–
Developer tools
–
–
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Image segmentation
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–
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Object identification
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–
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Process automation
–
–
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Data quality control
–
–
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Development
–
–
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Finance workflow automation
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–
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OCR
–
–
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Productivity
–
–
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Video analysis
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 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.