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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
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KBY-AI
✓ verifiedPaid
On-premises identity-verification SDKs (face, liveness, ID/KYC, ALPR) licensed for a one-time perpetual fee.
8.6K visits/mo
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clickworker
✓ verifiedPaid
Crowdsourcing platform using 8M+ global workers to deliver AI training data, labeling, surveys, testing and store checks.
1.8M visits/mo
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Lenso.ai
✓ verifiedFreemium
AI reverse image search with facial recognition to find places, people, duplicates, and original sources online.
1.6M visits/mo23K saves
Pricing
No public pricing
Free trial available
No public pricing
No public pricing
Core features
- ✦NIST-ranked face recognition SDK
- ✦3D passive and active face liveness detection
- ✦ID document recognition for 200+ countries
- ✦Palm recognition
- ✦License-plate recognition (ALPR)
- ✦Deepfake detection API
- ✦Cross-platform SDK support
- ✦8M+ verified global crowd
- ✦AI training data (image/video/audio/text) and annotation
- ✦Survey tools and respondents
- ✦Store checks and mystery shopping
- ✦Crowdtesting (web/app/games)
- ✦Tagging and categorization
- ✦Managed or self-service plus API
- ✦Reverse image search across categories
- ✦Facial recognition (face search)
- ✦Duplicate detection and original-source tracing
- ✦Advanced filters by domain, language, size, and date
- ✦Research mode for up to 10x more results
- ✦Developer API for image and face search
Use cases
- →KYC onboarding and identity checks
- →Anti-spoofing liveness verification
- →Authenticate ID documents
- →Biometric access control
- →Sourcing AI training and labeled datasets
- →Running surveys and market research
- →Point-of-sale store checks
- →Crowdtesting apps and websites
- →Finding where a face or photo appears online
- →Tracing the original source of an image
- →Protecting image copyrights
- →Integrating reverse image search via API
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