CoastMath: FIRE Calculator
FI & Retirement planning
About
Project your finances year by year to visualize your retirement timeline and future financial outlook. Input your accounts, income, expenses, and debts to generate detailed net worth, cash flow, and tax projections.
What's New in CoastMath
1.6
October 23, 2026
New welcome screen headline: Plan for your life after work.
Subscriptions & In-App Purchases
Premium Yearly
All Premium features, billed yearly.
Developer apps
FAQ
What is CoastMath?
CoastMath is a financial planning application designed to project your finances year by year, helping you visualize when you can achieve financial independence and retire early (FIRE). It allows you to input various financial details to forecast your net worth, cash flow, and taxes.
Is CoastMath free to use?
Yes, CoastMath offers a free version that includes all planning features. The free tier allows for one editable plan for 7 days after creation, with projections continuing to update thereafter.
What are the benefits of CoastMath Premium?
CoastMath Premium unlocks unlimited editable plans, plan duplication, restoration of archived plans, and CSV, PDF, and JSON exports of your annual reports. It provides full control over all your financial plans.
How much does CoastMath Premium cost?
CoastMath Premium is available for $29.99 per month or $99.99 per year. Subscriptions are charged to your Apple Account and renew automatically unless canceled at least 24 hours before the current period ends.
Does CoastMath connect to bank accounts?
No, CoastMath does not include bank connections. All balances and financial data must be entered manually by the user.
What devices does CoastMath support?
CoastMath is available on iPhone and iPad, supporting a range of iOS devices.
How often is CoastMath updated?
The latest version of CoastMath is 1.6, which was last updated on October 23, 2026. Updates typically occur to improve features and reliability.
Does CoastMath have ads?
No, CoastMath does not contain advertisements. The application is ad-free, allowing for an uninterrupted user experience.