Hey Siri, add gas in TankTalk.

Log a fill-up the moment you finish fueling — just by talking. TankTalk tracks your MPG over time so you always know how your car is doing.

Download on the App Store

See it in action

Your latest fill-up and your lifetime trends, a tap apart.

TankTalk home screen showing the most recent fill-up at 21.6 mpg and a list of previous fill-ups.
Log & review fill-ups
TankTalk home screen celebrating a new best of 32.3 mpg with confetti.
Celebrate new records
TankTalk stats screen showing average, best, and worst MPG plus lifetime totals.
Track your trends

Everything you need, nothing you don’t

Built for one thing: tracking your fuel economy quickly, privately, and without fuss.

100% hands-free logging

Log a fill-up by voice with Siri & Shortcuts — zero setup, and it works with CarPlay right after you fuel up. Just say it and it’s recorded.

  • I filled up in TankTalk
  • I fueled up in TankTalk
  • Log a gas stop in TankTalk
  • I filled up earlier in TankTalk
  • Log gas from yesterday in TankTalk

Deep fuel insights

Track trends over time: best mileage, worst mileage, rolling average, and total lifetime stats — at a glance.

Synced and private

Your data stays in sync across your iPhone and iPad through your own iCloud account. It’s private to you and never sent to the developer.

Glanceable widgets

Keep your latest efficiency on your Home Screen, Lock Screen, and CarPlay.

Your units, your way

Add a photo of your vehicle; supports mpg, L/100km, and km/L.