CoastIQ

An iPhone retirement calculator that projects savings with US tax rules, Monte Carlo runs and Roth conversion plans, kept on your device.

coastiq.org

Visit coastiq.org ↗would rather buy than build

Details

What it does: Money and budgeting
Who it’s for: Individuals and families
Works on: iPhone and iPad
Tags: retirement planning, monte carlo, roth conversion, social security, tax projections, fire planning

FIncoming
Lets couples close to retirement try out retirement ages, Social Security timing and Roth conversions and see the tax effect each year.
Money and budgeting · Individuals and families
RetireNumber
Retirement planner that runs market simulations on your savings to show your odds and which changes bring your date closer.
Since 2026
Free plan · Money and budgeting · Individuals and families
Bruce's Retirement Planner
Tests your retirement plan against thousands of simulated markets and lifespans to show when you can stop working and what you can spend.
Free · Money and budgeting · Individuals and families
firenum
Plans early retirement month by month in your browser, with Monte Carlo runs and backtests, no account needed.
Since 2026
Free · Money and budgeting · Individuals and families