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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.

LightOn logo
LightOn
✓ verifiedFreemium

Production RAG API for developers: parse, extract and search documents with SOTA OCR and cited retrieval, cloud or on-prem.

29K visits/mo
Interview Coder logo
Interview Coder
✓ verifiedFreemium

Undetectable desktop AI assistant that feeds real-time answers during coding and technical interviews.

167K visits/mo
Interviews Chat logo
Interviews Chat
✓ verifiedFreemium

AI interview copilot delivering real-time answer suggestions and live transcription across video, phone and coding interviews.

120K visits/mo6.2K saves
Zyft logo
Zyft
✓ verifiedFree

Free browser extension and app that automatically compares prices across Australian retailers while shopping online.

29K visits/mo1.0K saves
Empirical Health logo
Empirical Health
✓ verifiedPaid

Preventive heart-health service pairing a $190 100+ biomarker blood panel with an app for risk scoring and nutrition/exercise plans.

91K visits/mo
Pricing
Starter: Free + usage (parsing €0.002/page)
Business: €149/mo + usage (100 GB storage, unlimited users)

Free trial available

No public pricing

No public pricing

No public pricing

Heart Health: $190 (100+ biomarkers, one-time)
Core features
  • Parse endpoint with SOTA OCR (LightOnOCR-2)
  • Extract endpoint for schema-based JSON
  • Search endpoint with hybrid retrieval and citations
  • MCP-native and LLM-agnostic
  • Workspaces and chunk-level access control
  • On-prem, VPC or air-gapped deployment
  • Real-time AI answers during technical interviews
  • Invisible to screen sharing and recording
  • Hidden from dock, tray and activity monitor
  • Click-through overlay
  • Live audio capture and transcription
  • Lifetime unlimited access license
  • Real-time answer suggestions
  • Live interview transcription
  • STAR and bullet response formats
  • Chrome extension for online assessments
  • AI interview prep and mock interviews
  • Multiple AI models (GPT, Claude, Gemini)
  • Automatic in-background price comparison while shopping
  • Barcode scanner to check prices in physical stores
  • Price-drop alerts for saved products
  • Curated daily deals and retailer sales hub
  • Mobile app with search-and-compare functionality
  • AI-based product matching across retailers
  • 100+ biomarker lab panel
  • 2,200 testing sites
  • Heart-attack risk scoring
  • Lifetime-risk prediction simulator
  • Personalized nutrition and exercise plans
  • Empirical Pro metric tracking
Use cases
  • Build production RAG without a long in-house pipeline
  • OCR and structure scanned documents
  • Grounded document search with citations for agents
  • Deploy secure enterprise document intelligence
  • Getting live help on coding interview problems
  • Answering technical questions in real time
  • Avoiding detection during screen-shared interviews
  • Getting live help during interviews
  • Answering online coding assessments
  • Practising with AI-generated questions
  • Handling phone and video interviews
  • Checking whether a product is cheaper elsewhere before buying
  • Scanning a barcode in-store to compare online prices
  • Getting notified when a wishlisted item's price drops
  • Browsing curated deals across Australian retailers
  • Heart-disease risk assessment
  • Biomarker tracking over time
  • Preventive cardiovascular care
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