Installment Planner

Installment Planner helps you calculate monthly payments and manage simple payoff plans — all offline and on your device. Key features • Fast monthly payment calculation with amortization schedule • Per-period breakdown: payment, principal, interest, remaining balance • Save, rename, search, edit, and delete plans • Extra payment option: see time saved and total savings • Compare 2–3 scenarios side by side • Number/date formatting by locale; currency symbol selection ($, €, ₫, …) • Export schedule to CSV; export/import all plans to/from JSON (local files) • Works fully offline. No account, no internet, no ads integrations required Notes • This app does not provide loans, banking, or financial advice. • For information and personal planning purposes only.