Car Deal Checker scores any used car listing the moment you open it. Deal score out of 100, real monthly payment with tax and fees included, accident and salvage red flags, VIN decode with NHTSA recall check, and side-by-side saved comparisons. Free version covers all of it. Pro ($6 one-time, no subscription) adds a bargain meter with suggested offer price, price drop history, reliability ratings, and 5-year ownership cost. No account, no ads, no tracking.