If you own a Subaru or Mazda and want dealer-level control without a subscription, Proscan is superior to free tools. It is not as polished as a $1,500 Snap-on scanner, but it costs 95% less.
While both offer "Pro Scan" solutions, they serve different tiers of users: ProScan (General ELM327) CarMD PRO SCAN Target User DIY Enthusiasts Target User Professional Repair Facilities Connectivity Bluetooth/Wi-Fi to App Alibaba.com Connectivity Dedicated Hardware (PRO 15) Key Advantage High portability and low cost Alibaba.com Key Advantage Taps into 100M+ vehicle reports for verified fixes Data Tracking Live dashboards Google Play Data Tracking Automated archives and marketing coupons Purchasing Information Budget Adapters : Basic Bluetooth OBD2 adapters typically range from $20 to $48 proscan obd software