Retirement and financial scenario planner with real tax math
Free browser-based tool for understanding Windows laptop battery health
Stage
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Founded
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Based in
US
PK
Pricing model
Freemium
Free
Pricing
Free: one plan with the full engine and real tax math. Pro: $9 per month or $69 per year, includes more plans, compare two side by side, year's cash flow, Monte Carlo range, Roth conversions, and rentals.
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Key features
Real tax math with federal brackets, state tax, and FICA calculated each year
401(k) and IRA rules including contribution limits and employer match
Mortgage amortization with property tax and insurance
Rental property calculations with rent, vacancy, and upkeep
Social Security adjusted for claim age
Required minimum distributions with IRS rules
Roth conversion modeling
Monte Carlo analysis with market volatility
Compare two plans side by side
Spouse planning with separate ages and Social Security claims
Windows battery report parsing
Calculate battery health percentage
View capacity history trends
Manual capacity input
Local browser processing
No installation required
Private processing
What makes it different
No bank connection required; you enter your numbers manually for complete privacy
Detailed tax math applied year by year based on actual rules and limits
One plan stays completely free forever with the full engine
Compare different life decisions and scenarios on a single chart
Export or delete your data anytime with no lock-in
Process battery reports entirely in your browser with no data upload to servers
Explains Windows battery data in plain English with practical guidance
Guides based on official Microsoft and manufacturer documentation
Includes real examples from actual Windows battery reports
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Battery Health Lab