# Flat Radar BCN > One-click Chrome extension for AI-assisted analysis of Barcelona rental listings: it compares a listing's price per m2 with public neighbourhood reference prices (INCASOL / Generalitat de Catalunya), analyses the photos, detects text/photo contradictions, and returns a verdict, a score and a confidence label. ## Key facts - Free to start (3 analyses, no card), then paid plans. - Declared data outweighs data inferred from photos; a photo never overwrites the listing text. Discrepancies are shown as risks. - A Chrome extension captures an Idealista listing (text + photos) in one click; you can also paste the listing text on the web. - Guidance only — not an official valuation. ## Pages - Chrome extension: https://chromewebstore.google.com/detail/flat-radar-bcn/ghgblpgpjnhcmjbfeiefiphljjofeckj - How it works: https://flatradar.org/how-it-works - Pricing: https://flatradar.org/pricing