Check-engine codes
See what the light means, how urgent it is, and whether it can make you burn more gas. Clear the code once it's fixed.
OBD Reader for GasApp
Plug in. Drive. Watch every cent.
Plug it in once, and GasApp reads the fuel your engine actually burns, then shows what it costs, live, cent by cent.
Drag to spin
Free US shipping
1 year of GasApp free ($39.99 value)
Will it work with my car?
Money burned, live
Every drive has a price. Now you see it.
GasApp turns the fuel your engine burns into money as you drive: this trip, cents per second, and the total for today.
Money burned this trip
$2.470
A demo drive. In GasApp, the counter follows your car.
More than gas money
Your car, in plain English.
Live engine data
Speed, rpm, coolant temperature, battery voltage, fuel level and more.
Heads-ups
While you drive: a new engine code, the engine running hot, or the battery not charging.
On your Lock Screen
On iPhone, the trip's cost shows on the Lock Screen and in the Dynamic Island. On Android, it's a pinned notification.
Specs
Small. Simple. Plug and go.
- Connection
- Bluetooth LE 4.0
- Commands
- Standard ELM327
- Power
- From the car's OBD-II port (12 V cars)
- Fits
- Almost any US car from 1996 on
- Works with
- GasApp on iPhone and Android
- Ships from
- A US warehouse, free
OBD Reader for GasAppLaunch price
Regular price $59.99
Launch price $39.99
You save $20
Free US shipping. Every reader includes 1 year of GasApp free (a $39.99 value). Your code arrives by email after you order, or on launch day if you order before GasApp is on the App Store.
No account. Your trips stay on your phone. No ads. GasApp privacy policy