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AstroCalcolo vs Yuanzi Zhiyi

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

AstroCalcolo compared with Yuanzi Zhiyi
DetailAstroCalcolo logo AstroCalcoloYuanzi Zhiyi logo Yuanzi Zhiyi
What it doesAscendant calculator for Italy and the world with IANA timezone conversion and historical rules Free Bazi Chart Calculator with True Solar Time and AI Interpretation
StageNot given Not given
FoundedNot given Not given
Based inIT Not given
Pricing modelFree Freemium
PricingNot given Free basic chart, Ten Gods, hidden stems, and luck cycles. Paid one-time reports: complete life reading with 3-year outlook and 90-day action plan (price not specified). Credit packs available for full reports, follow-ups, and advisor chats; first top-up receives 20 bonus credits. Personal AI Adviso
Key features
  • IANA timezone conversion with historical rules for accurate local to UTC conversion
  • Supports over 7,800 Italian cities and 165,000 global cities
  • Shows margin of error with ±15, ±30, or ±60 minute options
  • Multi-level personalized reading including base description, decan analysis, and sun-ascendant synthesis
  • Daylight saving time automatically applied based on historical rules for location and date
  • All calculations processed locally in browser with no data sent to external services
  • Cusps warning to alert when result is near a zodiac sign boundary
  • Monthly table tool for quick checks across different times and signs
  • Combined moon and ascendant calculator in one tool
  • Chrome extension for quick ascendant checks from the browser
  • Free Four Pillars chart with true solar time calibration and historical time zone handling
  • Hidden Stems and Ten Gods visualization
  • Decade-long and year-by-year luck cycle analysis
  • Register to save multiple charts for family members
  • Complete life reading exploring personality, work, relationships, and life stages
  • Personal AI Advisor for ongoing conversation about chart and life choices
  • 3-year outlook with strategic timing guidance
  • 90-day action plan with tactical focus and concrete steps
  • Solar time calibration tool to verify time zone and boundary adjustments
What makes it different
  • Transparent about uncertainty: displays margin of error and warns when result is near sign boundaries
  • Uses reliable IANA timezone database with historical rules, not approximations
  • Privacy-first: all computation happens locally in the browser without storing or sending personal data
  • Clear explanations of calculation method, limits, and how to interpret results
  • Independent project maintained transparently by a single developer
  • Transparent calculation with defined rules allowing verification of chart results
  • True solar time and historical time zone handling for accurate chart generation
  • Separation of chart calculation from interpretation for evidence-based analysis
  • One-time payments with zero automatic renewals or hidden charges
  • Open-source kit for developers to integrate Bazi charting into their applications
Community votes00
DR (Domain Rating by Ahrefs)19 −1 (down) since last check2 no change since last check
Trust Flow (Majestic)81
Citation Flow (Majestic)2315
Referring domains (Majestic)5315

4 details filled in for both companies.

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