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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.

Convex logo
Convex
✓ verifiedFreemium

TypeScript backend-as-a-service with a reactive database, server functions, auth and file storage for full-stack and AI apps.

692K visits/mo20K saves
waldo.fyi logo
waldo.fyi
✓ verifiedPaid

AI platform for brand research and strategy; coherent research tool.

33K visits/mo
ChatPDF logo
ChatPDF
✓ verifiedFreemium

Popular tool to chat with PDFs and other documents, giving summaries and cited answers, with a free daily tier and no-signup start.

1.8M visits/mo43K saves
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
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
Free & Starter: $0/mo (pay-as-you-go, 1-6 developers)
Professional: $25/developer/mo
Business & Enterprise: $2,500/mo minimum
Teams: $179 per brand/month for 15 brands, paid annually

No public pricing

No public pricing

Heart Health: $190 (100+ biomarkers, one-time)
Core features
  • Reactive real-time database
  • TypeScript server functions (queries/mutations/actions)
  • Built-in authentication
  • Cron jobs and backend workflows
  • File storage, text and vector search
  • ACID transactions; open-source/self-host
  • Automated workflows for brand strategy
  • Real-time data from social, ad libraries, and premium providers
  • Customizable workflows with no code required
  • Private and confidential workspace
  • Collaboration and export tools
  • Chat with PDFs, Word, PowerPoint and text files
  • Summaries with cited sources
  • Multi-file chats via folders
  • Any-language upload and chat
  • Extra tools: AI writer, detector, flashcards, slides
  • No-signup quick start
  • 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)
  • 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
  • Building real-time reactive apps
  • Backends for AI agents
  • Replacing Firebase or Supabase
  • Full-stack TypeScript development
  • Brand research
  • Audience insights
  • Last-minute pitches
  • Competitive intel
  • Regional market research
  • Understand research papers
  • Study and homework help
  • Review contracts and reports
  • Translate and summarize documents
  • Getting live help during interviews
  • Answering online coding assessments
  • Practising with AI-generated questions
  • Handling phone and video interviews
  • Heart-disease risk assessment
  • Biomarker tracking over time
  • Preventive cardiovascular care
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