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AstroCalcolo vs Coast FIRE Planner

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 Coast FIRE Planner
DetailAstroCalcolo logo AstroCalcoloCoast FIRE Planner logo Coast FIRE Planner
What it doesAscendant calculator for Italy and the world with IANA timezone conversion and historical rules Find the month you can stop saving for retirement
StageNot given Not given
FoundedNot given Not given
Based inIT CA
Pricing modelFree Free
PricingNot given Not given
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
  • Shows the exact month you can stop saving
  • Runs 1,000 simulated markets to show odds of success
  • What-if scenarios for savings, returns, and fees
  • Accounts for investment fees and contribution raises
  • Share links to compare plans with others
  • No sign-up required
  • Calculations run in browser, data not stored
  • Shows formulas and assumptions transparently
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
  • Answers when you can stop saving, not just how much you need
  • No sign-up, no data stored, free to use
  • Shows odds of success with Monte Carlo simulations
  • Plain language explanations without financial jargon or hype
Community votes00
DR (Domain Rating by Ahrefs)19 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)80
Citation Flow (Majestic)2316
Referring domains (Majestic)532

5 details filled in for both companies.

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