Skip to main content

Built by makers, shipped in public

Sign in

GetBirthChart vs InstantCalcs

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

GetBirthChart compared with InstantCalcs
DetailGetBirthChart logo GetBirthChartInstantCalcs logo InstantCalcs
What it doesFree birth chart calculator with AI interpretation from your birth data Free online calculators for math, finance, health, pregnancy, and more
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Free
PricingFree birth chart calculation with 3 AI questions. Full Reading upgrade $9.99 one-time includes complete interpretation, PDF report and 20 AI questions. Yearly Forecast upgrade $9.99 one-time. Couple Reading upgrade $14.99 one-time for synastry, composite chart and relationship interpretation. Not given
Key features
  • Full birth chart calculation with planets, houses and aspects
  • Professional ephemeris data for accurate planetary positions
  • Downloadable PDF birth chart report
  • Open-source calculation engine for transparency
  • Educational content on signs, planets, houses and aspects
  • No guessing: omits features requiring unknown birth time
  • BMI calculator for health assessment
  • Ovulation and pregnancy tracking calculators
  • Percentage and fraction calculations
  • Loan and mortgage financial calculators
  • Construction calculators for measurements
  • Unit conversion tools
  • FFMI and body composition analysis
  • Instant results with no processing delays
What makes it different
  • Open-source calculation engine allows independent verification of methodology
  • AI interpretation synthesizes your entire chart rather than reading each placement in isolation
  • Treats astrology as reflective language, avoids fear-based predictions
  • Birth data treated as private and never sold
  • Completely free with no signup or registration required
  • Privacy-focused with local browser processing
  • Accurate calculations based on industry-standard formulas
  • 73 calculators across multiple categories
  • Clean and intuitive user interface
Community votes00
DR (Domain Rating by Ahrefs)18 −1 (down) since last check4 +1 (up) since last check
Trust Flow (Majestic)181
Citation Flow (Majestic)1013
Referring domains (Majestic)361

4 details filled in for both companies.

More alternatives to GetBirthChart More alternatives to InstantCalcs

Ask us