Interactive tools
I built these tools so you can answer money questions better. Try them with your real numbers, or just play.
- Spending
Expense Tracker Builder
Build your own expense tracker and save it as an Excel file or a Google Sheet.
- Investing
SGOV vs HYSA
See what your savings earn against SGOV and T-bills after tax, in your state.
- Credit Cards
Amex Platinum vs. Chase Sapphire Reserve
See whether each card's perks are worth its annual fee to you.
- Options
Options simulator
Calculate how much an option can gain or lose, today or at expiration.
