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firenum™ 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.

firenum™ compared with Coast FIRE Planner
Detailfirenum™ logo firenum™Coast FIRE Planner logo Coast FIRE Planner
What it doesFree FIRE financial planner with Monte Carlo simulation and historical backtesting Find the month you can stop saving for retirement
StageEstablished Not given
Founded2019 Not given
Based inNot given CA
Pricing modelFree Free
PricingNot given Not given
Key features
  • Monte Carlo simulation with up to 5,000 runs
  • Historical backtesting against every market period since 1872
  • US federal, state and payroll tax calculations for all 50 states
  • Roth conversion ladder and RMD planning
  • Six stress tests including market crash and job loss
  • Three withdrawal strategies with 59.5 rule enforcement
  • Support for 9 asset types with individual growth rates
  • Month-by-month income and expense modeling with custom timelines
  • Life event planning
  • 9-currency support with auto-detection
  • 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
  • Runs entirely in your browser with no account needed or data stored on servers
  • Tests retirement against 154 years of historical market data since 1872
  • Calculates exact tax liability for all 50 US states plus federal and payroll taxes
  • Completely private with no data collection, selling or sharing
  • Works offline on Android with full planner functionality
  • 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)12 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)40
Citation Flow (Majestic)3416
Referring domains (Majestic)1272

4 details filled in for both companies.

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