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AstroCalcolo vs PaycheckZip.com

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 PaycheckZip.com
DetailAstroCalcolo logo AstroCalcoloPaycheckZip.com logo PaycheckZip.com
What it doesAscendant calculator for Italy and the world with IANA timezone conversion and historical rules 2026 paycheck estimates with line-by-line tax breakdowns for every state
StageNot given Not given
FoundedNot given Not given
Based inIT Not given
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
  • Salary and hourly paycheck calculator for all 50 states plus DC
  • Line-by-line tax breakdown with sources cited from IRS and state tables
  • W-4 step-by-step configuration with credits and allowances
  • Overtime, tips, bonuses, and pre-tax deduction inputs
  • Local tax calculations for NYC, Yonkers, and Philadelphia
  • Pay stub verification and comparison tools
  • Comparison of job offers after tax
  • Take-home pay map by state
  • Guides on tax topics and paycheck literacy
  • 43 published test cases verifying calculator accuracy
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
  • Cites specific IRS and state tax tables for every line, verified October 9, 2026
  • Line-by-line breakdown shows exactly how each tax is calculated
  • Handles complex scenarios including two jobs, W-4 Step 2, multiple employers, and local taxes
  • Results can be shared without exposing personal data in the URL
  • Clear guidance on limitations: estimates, not tax or payroll advice
Community votes00
DR (Domain Rating by Ahrefs)20 no change since last checkNot checked yet −2 (down) since last check
Trust Flow (Majestic)80
Citation Flow (Majestic)230
Referring domains (Majestic)530

4 details filled in for both companies.

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