CPF TechTools vs Dr Underhood Live Assist

Charlotte Pipe Tech Tools App provides simple, on-the-go technical tools for the plumbing industry. Tools featured include an expansion and contraction calculator and a temperature de-rating calculator. Ideal for plumbing engineers, contractors, architects and other industry professionals. Additional tools will be added soon.

Dr. Underhood turns your phone into a smart car-diagnostic tool. Pair an approved Bluetooth OBD-II adapter, scan your vehicle in seconds, and get a clear, plain-English explanation of what's wrong — no mechanic jargon. WHAT YOU CAN DO • Read and clear check-engine codes over Bluetooth (ELM327 OBD-II) • Get an AI-powered diagnosis that explains the problem in plain English • See likely causes, severity, and what to do next • Share your scan directly with a trusted repair shop • Book an appointment and get a case summary from the shop WHY DRIVERS LOVE IT • No guessing at the auto-parts store • Understand repairs before you pay for them • Faster, more transparent communication with your shop Note: Requires a compatible Bluetooth OBD-II adapter (sold separately). The app will guide you to an approved adapter. Dr. Underhood is built for everyday drivers who want to understand their car and avoid surprise repair bills.