Estimate the monthly payment
Model principal, annual interest rate, term, and optional extra monthly payments in one focused calculator.
A clear payment and amortization planner
Model principal, interest rate, term, and extra monthly payments, then inspect the estimated schedule and compare saved scenarios side by side.

Built for the task
Estimate the monthly payment
The short answer
A direct definition for readers, search engines, and answer systems.
Loan Calculator is an iPhone financial planning utility that estimates monthly principal-and-interest payments, total interest, total cost, extra-payment savings, and an amortization schedule from the values you enter. It can keep comparison scenarios locally.
All calculations are estimates for informational purposes, not financial advice, underwriting, approval, a rate quote, or a lending offer. Confirm actual rates, fees, taxes, insurance, and terms with the lender.
Inside the app
Every feature supports the same workflow, so the app feels like a system rather than a folder of disconnected AI buttons.
Model principal, annual interest rate, term, and optional extra monthly payments in one focused calculator.
See the estimated total principal, total interest, and overall cost behind the monthly figure.
Open the amortization schedule to review principal, interest, and remaining balance over the modeled term.
Add an extra monthly amount and compare the estimated time and interest saved under the same assumptions.
Save multiple examples on the iPhone and keep alternatives such as a home, car, or renovation side by side.
The app does not include every fee, tax, compounding rule, lender policy, or variable-rate change.
Product tour
Real screens from the current iPhone experience.
How it works
Add principal, annual rate, term, and any extra monthly payment you want to model.
Compare monthly payment, total interest, total cost, and the modeled payoff date.
Open the full schedule and keep useful examples locally for later comparison.
Who it helps
Practical guide
Check the contract and current payoff quote, model an extra monthly principal amount, compare estimated time and interest saved, and confirm how the lender or servicer will apply the payment.
Direct answers
The core result estimates principal and interest from the values entered. It may not include taxes, insurance, closing costs, origination fees, penalties, changing rates, or lender-specific rules.
Yes. Add an extra monthly amount to estimate how the payoff timeline and total interest change under the same assumptions.
No. Results are informational estimates, not financial advice, approval, a quote, or a lending offer. Confirm every term and fee with the actual lender.
The submitted initial release keeps saved scenarios locally in the app’s private container on the iPhone. No account is required.
Currently in App Store review
Version 1.0 has been submitted to Apple and the public store page will appear after approval.
Submitted to App Store