Analyze a listing’s profitability in one click
MonSimulateur turns the property listing you’re viewing into an investment analysis, without leaving the page. A discreet badge appears on the major French listing sites — like SeLoger and LeBonCoin — and, on your request, reads price, surface, EPC and city to estimate profitability.
How it works
Open a listing
Browse a property on a supported French listing site. The badge appears automatically.
Click “Analyze”
The extension reads the public listing data, on your request, and computes the key numbers.
Open the full simulator
One click opens the complete simulator (LMNP, SCI, déficit foncier…), already pre-filled.
The numbers that matter
Estimated gross yield
Instantly, from the listed price and estimated rent.
Monthly cash-flow
Adjustable down-payment, rate and term.
Gap vs market price
Per-municipality market data to spot a good deal.
Estimated rent
Based on official “Carte des loyers” data, plus rental tension.
A look inside
Privacy-first by design
- Reads only the public data of the listing you’re viewing, on your request.
- No analytics, no behavioral tracking, no advertising pixel.
- Emails and phone numbers are masked locally before any transfer.
- Your data is never sold or shared.
Independent tool published by RIANN SAS, with no affiliation to the listed websites (trademarks of their respective owners).
Read the extension privacy policyReady to analyze your next listing?
Install the extension and turn every listing into a clear investment decision.
Free to start · No browsing tracking