Has this house beaten the market since you bought it?
Property back-test runs at /property-metrics/. Home value between purchase and today is a straight dollar line you control, not a fake monthly appraisal.
Worked example: Dallas purchase June 2018 at $285,000, 20% down, 4.50% 30-year. Remaining principal after 96 months about
FAQ
Is Property back-test an appraisal or a Zestimate clone?
No. The house path between purchase and today is a straight dollar line you control (purchase price → current value). Street lookups may suggest a current estimate from public sources; you can overwrite it. The interesting output is equity versus a published market series, not a new list price.
Do you store my address or loan on Arnali servers?
The calculator runs in the browser. Lookups you request (a metro preview or a street estimate) go to the data vendors those steps use. We do not keep a database of your mortgage. You can download a session file to your device.
Why not use a fancy monthly home-price model?
A fake monthly appraisal looks precise and is usually wrong. A labeled straight line between two values you believe is honest. Switch the benchmark (SPY, FHFA purchase-only HPI, Treasuries) to see whether the story depends on the comparison, not on a secret house curve.