Revfinch: OBD2 Car Scanner

Tinyfair

Contains adsIn-app purchases

About this app

Revfinch is an OBD2 car scanner and car diagnostic app for ELM327-compatible adapters. Find out why the check engine light is on, read and clear trouble codes, and watch live engine data on your phone.

Reading and clearing codes is never locked behind a paywall. Plug an OBD2 adapter into the port under your dashboard, connect over Bluetooth, BLE or Wi-Fi, and scan.

CHECK ENGINE LIGHT CODES, EXPLAINED
• Stored, pending and permanent trouble codes
• Each code explained in plain language, with the system it belongs to and how serious it is
• Check engine light (MIL) status at a glance
• Clear codes after a repair, with a confirmation first
• Scan history for your car

READY FOR AN EMISSIONS TEST?
• Readiness monitors show what is ready and what is not
• VIN, ECU name, protocol and the list of supported sensors

LIVE DATA
• Engine speed, vehicle speed, coolant temperature, engine load, fuel level and battery voltage
• Clear numbers in a calm layout, easy to read in a garage or at night

CONNECTS TO COMMON OBD2 ADAPTERS
• Works with ELM327-compatible OBD2 adapters: Bluetooth, Bluetooth Low Energy (BLE) and Wi-Fi
• Finds the protocol by itself and remembers your last adapter
• Several start-up sequences for budget adapters that answer slowly
• A step-by-step connection guide and a connection log, so you can see where it stops
• Demo mode with a simulated car, so you can look around before you buy an adapter

REVFINCH PRO
• Every supported sensor with live graphs
• Custom dashboard with round gauges, bars and numbers, landscape and HUD mode
• Freeze frame data and Mode 06 test results
• Trip recording with CSV export
• Car health report as a PDF, handy when you sell a car or visit a mechanic
• More cars and unlimited scan history
• Alerts for engine temperature and battery voltage
• No ads
Pro is available as a weekly, monthly, 3-month or yearly subscription, with a free trial for new subscribers on the yearly plan, or as a one-time lifetime purchase. You can also unlock Pro for 24 hours by watching two short videos.

PRIVATE BY DESIGN
No account and no sign-up. Your VIN, trouble codes and trips stay on your phone.

GOOD TO KNOW
• You need an ELM327-compatible OBD2 adapter to read your car. Demo mode works without one.
• Most petrol cars sold in the US since 1996 and in the EU since 2001, and most diesel cars in the EU since 2004, have an OBD2 port.
• Revfinch reads standard OBD2 data. It does not do maker-specific coding or service resets.
• Revfinch is an OBD2 car scanner, not a replacement for a mechanic. Do not use the app while driving; set up the dashboard before you go.

What’s new

First release: read and clear check engine codes, live data, emission readiness, vehicle info and a demo car. Works with ELM327 Bluetooth, BLE and Wi-Fi adapters.