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UltraCalcPal vs Natal Chart Lab

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

UltraCalcPal compared with Natal Chart Lab
DetailUltraCalcPal logo UltraCalcPalNatal Chart Lab logo Natal Chart Lab
What it doesUltra-marathon nutrition calculator for race-day fuelling Free astrology calculators with published methods and astronomical accuracy
StageNot given Not given
FoundedNot given Not given
Based inNot given SG
Pricing modelFreemium Free
PricingFree account with demo calculator and one saved plan. Pro is €13 EUR once per plan for aid-station planner, race-day forecast, sharing, PDF, race-week reminder and learning from past race. Not given
Key features
  • Carbohydrate, fluid and sodium calculations per hour based on weight, effort and weather
  • Fuel ideas in gels, chews, drink mix or real food with mixed strategy options
  • Aid-station planner with up to 60 stations and drop-bag lists
  • GPX file import for race route and waypoints
  • Race-day forecast with heat-index adjustments
  • Hour-by-hour race plan table with night-race adjustments
  • Shareable private links to share plans with crew
  • Printable PDF of the complete race plan
  • Race-week reminder by push or email with key numbers
  • Post-race review to learn from past races
  • Calculate Chiron sign and degree from birth date
  • Optional birth time to determine Chiron house
  • Exact Chiron return dates
  • NASA JPL Horizons ephemeris data
  • Chiron retrograde calendar
  • Birth date range 1900 to 2100
  • Chiron sign interpretations
  • Historical timezone accounting
  • Published methodology and accuracy verification
What makes it different
  • Demo calculator requires no account and sends nothing to the browser
  • One-time €13 EUR payment per plan with no subscription
  • Personalised calculations based on published sports-nutrition ranges scaled to your weight and conditions
  • Plans are private by default with revocable sharing links
  • No ad trackers and ability to delete all personal data
  • Uses NASA JPL Horizons data verified to within a fraction of an arcsecond
  • Open source code and ephemeris data on GitHub
  • No account required and birth details not stored
  • Transparent about calculation methods and limitations
  • Handles uncertain birth times with clear flagging
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)016
Referring domains (Majestic)02

4 details filled in for both companies.

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