Every listing, underwritten in one click.
RE-SIM sits quietly on top of your favorite real-estate sites and turns any property page into a live cash-flow and mortgage simulation. No spreadsheets. No copy-pasting. Just numbers you can trust.
Works with Zillow, Redfin, Realtor.com, and 40+ MLS portals.
What it does
Underwriting, without the friction.
One-click analysis
Open any listing. RE-SIM auto-fills price, taxes, and rent estimates.
Mortgage sim
Adjust down payment, rate, and term. See monthly payment update live.
Cash flow & projections
Monthly cash flow and 10-year projections — all in one panel.
Private by default
Everything runs in your browser. Your deals stay on your machine.
How it works
Three steps. Zero spreadsheets.
- 01
Install
Add RE-SIM to Chrome. Pin it to your toolbar in seconds.
- 02
Open a listing
Visit any property page. The RE-SIM panel appears automatically.
- 03
Simulate
Tune assumptions. Compare deals. Know your numbers instantly.
Pricing
Start free. Upgrade when you are ready.
Free
$0Core deal analysis for every listing you visit.
- One-click deal analysis
- Unlimited manual calculations
- Mortgage & cash-flow sim
Pro
PaidAdvanced tools for serious investors.
- Everything in Free
- Advanced projections (10+ year)
- Comparable sales (comps)
Stop guessing. Start underwriting.
Free while in beta. No credit card required.