TessTrack
Last updated: August 14, 2026
TessTrack is an independent app for Tesla owners that uses vehicle data from your Tessie account to help you track driving costs, mileage, efficiency, charging activity, driving history, and savings compared with ICE (internal combustion engine) vehicles.
This Privacy Policy explains what information TessTrack accesses, how it is used, where it is stored, and whether it is shared.
To provide its features, TessTrack retrieves vehicle information through the Tessie API for the Tesla vehicles you choose to connect. Depending on the features you use, this may include:
This information is provided through your Tessie account, which you separately authorize and control.
TessTrack uses fuel-price data from the U.S. Energy Information Administration (EIA) to estimate gasoline costs for ICE vehicle comparisons. You provide your own EIA API key, which TessTrack uses to retrieve this information directly from EIA.
EIA API access is free, but registration for an individual API key is required.
TessTrack uses vehicle and fuel-price data to provide features within the app, including:
Your information is not used for advertising or marketing.
TessTrack stores the following information securely in the iOS Keychain on your device:
TessTrack does not transmit or store this information on any server operated by TessTrack.
Vehicle data retrieved from Tessie and fuel-price data retrieved from EIA are used by the app to provide its features. We do not operate a backend server for TessTrack.
TessTrack relies on the Tessie API to retrieve Tesla vehicle data using credentials you provide and control. An active Tessie account and subscription are required to use TessTrack.
TessTrack also uses data from the U.S. Energy Information Administration (EIA) to provide regional fuel-price information used for ICE vehicle cost comparisons. A free EIA API key is required.
Your use of Tessie and EIA services is subject to their respective terms and privacy policies.
TessTrack is an independent application and is not affiliated with, endorsed by, or sponsored by Tesla, Inc., Tessie, or the U.S. Energy Information Administration.
TessTrack is not directed to children under the age of 13 and is not intended for use by children under 13.
We may update this Privacy Policy from time to time. Any updated version will be posted at this URL with a revised "Last updated" date.