The iPhone Loan Calculator entry belongs to August 7, 2007. The preserved original page confirms its title and date, although its main article text is missing. It is part of the early browser-based iPhone software era, rather than evidence of a particular modern App Store download.
A same-day AppSafari listing points to the old calculator at the Orbital Design Group domain. That destination now serves unrelated material, so it is not offered here as a working calculator. The useful idea behind the entry remains simple: compare a borrowing scenario on a small screen before committing its numbers to a budget.
What a repayment estimate needs
For a standard fixed-rate, fully amortizing loan, three inputs drive the principal-and-interest payment: the amount borrowed, the interest rate and the repayment term. The Consumer Financial Protection Bureau explains those inputs and distinguishes ordinary repayment schedules from balloon and adjustable-rate arrangements.
When comparing results, check the term’s units and what the displayed payment includes. A principal-and-interest figure for a mortgage can exclude taxes and insurance. A low number on a calculator screen is not the same thing as the complete monthly cost.
Compare the total as well as the month
A longer repayment period can make the monthly figure smaller while increasing total interest paid. The CFPB’s explanation of amortization describes why the balance falls slowly at first and why loan length changes the cost over time. To compare two scenarios, keep the amount and interest rate consistent, change the term, and examine both the monthly estimate and total repayments.
Save the assumptions beside any result. That makes it possible to revisit the calculation when a rate, deposit or loan amount changes, instead of comparing numbers produced under different conditions. This is general guidance for using repayment tools, not confirmation that the original web app included saved scenarios or a particular calculation method.
An original date, with present-day context
This page retains its August 7, 2007 publication date to preserve the historical link. The surviving evidence does not establish the original calculator’s full interface or its accuracy. Its historical identity is kept separate from the current, linked explanation of how to interpret a repayment estimate.