Know your pack, cell by cell.
OttoTrail reads the Punch.ev’s battery management system as you drive: charge, health, pack voltage and current, temperatures and every cell’s voltage.
- A reading every kilometre, stamped with where you were.
- Keeps reading with the phone locked, while its notification shows.
- No adapter with you? Type a reading in by hand.
Every charge, priced.
Upload a charging invoice as a PDF or a photo. OttoTrail reads it, matches it to the charge in your log and works out what you paid per kWh. Home charges use your own tariff.
- Reads invoices from ChargeZone, Tata Power, Statiq, Jio-bp, Zeon and more.
- See your public spend, the energy billed and your average price per kWh.
Plan the drive around the chargers.
Pick a start and a destination. OttoTrail takes Google Maps’ route and places charging stops on it, using your car’s real range from its own log.
- Choose how far to drive between charges.
- See the charge along the route, each stop and what it should cost.
- Open a stop in the network’s app to start charging.
Built for the way you drive.
On the car’s screen
Android Auto shows the charge, range, today’s drive and your cost per kilometre. Save the day’s drive from the dashboard.
Ask about your trips
Ask in plain words, like “how efficient was last week’s highway run?”, and get an answer from your own log.
More than one car
Each car keeps its own log. OttoTrail reads the VIN to name the car and to know it when you reconnect.
Backed up to your account
Sign in with Google and your cars, trips and notes come back on a new phone.
Your car’s data is your business.
OttoTrail makes nothing from ads or your data. It’s made by an independent developer in India, and the privacy policy says exactly what’s stored and why.
Not a banner, not a “sponsored” charger. Ever.
No analytics, crash reporting or ad tools, and we don’t sell your data.
OttoTrail only reads from your car. It blocks any command that could clear fault codes or change a module.
Erase your account and everything backed up to it from the app. How it works.
Start reading your Punch.ev.
Free on Android. Bring a Bluetooth OBD-II adapter (ELM327) and sign in with Google.
Get it onGoogle Play