EVStudio 電車工作室

EVStudio Privacy Policy

Last updated: October 19, 2026

Thank you for using EVStudio (the "App"). This policy explains what data the App collects, how it is used, where it is stored, and how it is protected.

This App is an independently developed third-party application and has no affiliation, endorsement, or partnership with Tesla, Inc. "Tesla" is a trademark of Tesla, Inc., used here solely to describe compatibility with Tesla vehicles.

1. Data We Collect

2. Bluetooth (BLE) Data and Sentry Footage — Processed Locally Only

The Live Dashboard communicates with your vehicle directly over Bluetooth; BLE vehicle state is processed and displayed only on your device and is not uploaded. Sentry Videos reads only files or folders you select, and previews, edits, and exports footage locally. Photo-library access is used only for media you select or for saving exports. These files are not uploaded unless you separately choose to use the AI Light Show feature.

Sentry footage decryption (iOS and Android): the video files themselves are never uploaded. If footage recorded by the vehicle is encrypted, only when you actively tap "Sign in to Tesla" and "Decrypt this event" (or the equivalent decrypt action) does the App complete authorization on Tesla's official sign-in page (auth.tesla.com) and send the authorization code, tokens, and the information in the video header needed to obtain the decryption key (the wrapped key, key ID, timestamp, public key, and the vehicle identification number, VIN) directly to Tesla (auth.tesla.com, dashcam.tesla.com). This data does not pass through the developer's servers. Tokens are kept only on your device (iOS: Keychain, not synced to iCloud; Android: the App's private directory, encrypted with the Android Keystore and excluded from system backup). The App never receives your Tesla password. Tesla's handling of this data is governed by Tesla's own privacy policy.

3. Where Data Is Stored

4. Subscriptions and Payment

Paid subscription features are processed through Apple App Store (In-App Purchase). All credit card numbers and billing information are collected and held directly by Apple. The App and its developer never access or store any of your payment information.

On Android, paid subscriptions and one-time purchases are processed through Google Play; your payment method, card number, and billing details are collected and held by Google. The App sends only the product ID and purchase token to the developer backend, which verifies the entitlement with Google and never handles payment data. To cancel, open Google Play: Play Store › Payments & subscriptions › Subscriptions, choose EVStudio, and cancel; in the App, Settings › Account & Subscription › Manage Google Play Subscription also opens that page.

5. Third-Party Services

The App relies on the following third-party services to provide its features:

Each service's data handling is additionally governed by its own privacy policy.

6. Data Deletion and Retention

Cloud account data is retained while needed to provide the service. In the App, go to Settings → Account & Subscription → Delete App Account & Cloud Data (in versions before 2.5.0: Settings → Tesla Account; on Android the path is the same: Settings › Account & Subscription › Delete App Account & Cloud Data, which appears only once a cloud account exists, so if it is absent there is no cloud data to delete) to permanently delete the anonymous account and developer-held Tesla access and refresh tokens, VIN mappings, push tokens, subscription-entitlement mapping, cloud charging records, trip logs, location, telemetry, and AI job or temporary-upload data associated only with that account. This cannot be undone. If the same vehicle remains independently authorized by another account, shared vehicle telemetry and the trip logs that account can also see are retained for the account that still has access. To prevent other accounts on the same vehicle from seeing trips that are not theirs, we keep the vehicle's claim start and end times without any account identifier. Charging records and files stored only on the device are not automatically erased with the cloud account; you can clear them manually or by removing the App. If in-app deletion cannot be completed, contact us for assistance.

Deleting the App account does not cancel an Apple or Google Play subscription. Apple or Google manages subscription billing, so cancel separately in Apple's subscription-management screen or, on Android, in Google Play (Play Store › Payments & subscriptions › Subscriptions) if you no longer want the paid service. The service deletes the Tesla OAuth tokens it holds; Tesla's separate third-party-app consent can be revoked in Tesla's access-management page.

Requesting deletion without opening the App: email evstudio.app@gmail.com with the subject "Account deletion request" (add "Android" if you use the Android version), say that you want your App account and cloud data deleted, and include identifying information that lets us find your account: (1) your Google Play order number (starts with GPA., found in the purchase receipt email or Play Store › Payments & subscriptions; available only if you purchased on Android); (2) if you authorized Tesla, the VIN of the authorized vehicle; (3) if you ever sent feedback from the App, the email address you entered. If you cannot provide any of these (for example, you never purchased, authorized, or left an email), we cannot map a request to your anonymous account from outside the App, so please delete it inside the App instead. To prevent impersonation we may ask for additional information to confirm it is you. We complete deletion within 30 days of receiving the request and reply to the sending address; the scope of deletion and what is retained are as described in this section.

Android: what is retained after deletion: Google Play purchase-verification records and the push identifier are deleted with the account. So that you can restore a purchase if you recreate an App account with the same Google Account, and so support can review disputes, we separately keep an irreversibly hashed buyer-ID mapping and a purchase-transfer audit record (only anonymous UUIDs and hashes, with no raw purchase token or payment data), deleted automatically after at most 90 days. Android system backup is stored by Google in your own Google Account and is not affected by in-App deletion; manage it in Android system settings. Google Play's order and payment records are kept by Google under its own rules and we cannot delete them.

Feedback: report text is retained until the issue is resolved and for later comparison; any attached diagnostic log excerpt is deleted automatically 90 days after submission. You can email us at any time to have your reports deleted.

OTA software version sharing: you can turn off "Share OTA version" under "Connection Doctor" in the App at any time. Once it is turned off, or your subscription lapses, the App stops collecting and the private version observation records tied to that vehicle are deleted. The software version numbers and official release-note content already compiled into the public OTA update information are retained; they contain no personal data.

7. Website Hosting and Analytics

This website (evstudio.netlify.app) is hosted on Netlify. Apart from server access logs generated by the hosting service itself, the site uses no third-party analytics and embeds no tracking or advertising code.

8. Children's Privacy

The App is not directed at children under 13 and does not knowingly collect personal data from children.

9. Changes to This Policy

If this policy changes materially, an updated version with a revised date will be posted on this page.

10. Contact Us

For privacy-related questions, or to request help deleting your data, please contact us:

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