Tessie — A Smarter Companion App for Your Tesla
Tessie is a popular third-party companion app for Tesla owners that goes well beyond what the official Tesla app offers — automatic drive logging, battery health reports, charging history, and rich long-term utilization stats. It works across mobile, web, and desktop, so your car's data follows you wherever you are.
Why owners add Tessie alongside the Tesla app
The Tesla app is great for day-to-day control — unlock, precondition, check charge. Tessie picks up where it stops: it quietly records every drive and every charge, then turns that data into trends you can actually learn from over months and years of ownership.
- Automatic drive tracking with maps, efficiency, and energy used per trip.
- Battery health reports estimating degradation vs. your original pack.
- Full charging history — home vs. Supercharger vs. third-party, with cost.
- Long-term utilization: miles driven, kWh used, $/mile, even tire wear estimates.
- Sentry & dashcam clip management, plus a clean timeline of where the car has been.
A great way to flag and categorize trips
Tessie lets you tag and flag individual drives — personal, business, club event, road trip — and export the log as a CSV or PDF. That makes it especially handy for:
- Mileage reimbursement and business expense tracking.
- Tax records for self-employed and rideshare drivers.
- Splitting personal vs. work miles without a separate logbook app.
- Reviewing a long road trip leg-by-leg with charging stops and efficiency.
See long-term utilization, not just today
The Tesla app shows you right now. Tessie shows you the arc of ownership: monthly miles, lifetime kWh, average efficiency by season (very useful in Ohio winters), Supercharger spend vs. home charging, and how your real-world range compares to EPA.
For owners thinking about a second Tesla, resale, or just wanting to prove out their cost-per-mile versus their old ICE car, this data is gold.
Mobile, web, and desktop
What Ohio owners use it for most
On this site, Tessie powers all of our range tracking — every efficiency number, seasonal range chart, and real-world Wh/mi figure you'll see in our guides and reviews comes from Tessie logs across Ohio Valley member cars.
- All range tracking — four-season efficiency, highway vs. city, and how cold mornings hit range on I-71 and I-77.
- Supercharger cost log — verify what road trips actually cost vs. home charging on AEP / Duke / FirstEnergy / AES.
- Battery health checks before warranty windows close.
- Club drives & event mileage — flag meetups and group drives separately.
How it connects
Tessie connects through Tesla's official fleet API using your Tesla account credentials — no third-party hardware, no OBD dongle. You can revoke access from your Tesla account at any time. There is a free trial and then a paid subscription; pricing and current features live on their site.
Tesla Owners Club of Ohio is not affiliated with Tessie. This page is an independent recommendation based on member usage. Always review the latest pricing, privacy policy, and supported features directly on tessie.com.