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Dev.to
Dev.to
5/9/2026
I Built a Privacy-First Calculator Platform With Zero Tracking — Here's the Architecture

I Built a Privacy-First Calculator Platform With Zero Tracking — Here's the Architecture

Short summary

Developer built CalcIQ, a privacy-first calculator platform running entirely in-browser with zero tracking—19 calculators, 8 currencies, offline support, $0 hosting. Architecture uses vanilla JavaScript with Service Workers and static HTML landing pages for SEO, avoiding frameworks for faster loads and smaller attack surface. Addresses 103M+ monthly calculator users with zero privacy-first alternatives, optimized for 75-85% mobile users.

  • Privacy-first calculator platform (CalcIQ) runs entirely in-browser with zero data collection or tracking
  • Vanilla JavaScript + Service Workers + static HTML chosen over React for performance, security, and SEO; infrastructure costs $0/month
  • Market gap identified: 103M+ calculator platform users with zero privacy alternatives; optimized for 75-85% mobile with 50+ countries organic reach

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