Privacy Policy

Privacy Policy & Terms of Service

EV Battery Health • Developer: Catalyst Fix Pro

Last Updated: November 7, 2026

Data Collection

Developer-operated servers: Catalyst Fix Pro does not collect, store or host your vehicle diagnostic history on developer-operated servers as part of normal app operation.

No advertising: EV Battery Health is the paid, ad-free edition and is intended to contain no advertising SDK or advertising network integration.

Vehicle Diagnostic Data

EV Battery Health communicates with supported vehicles through compatible OBD2 adapters and may read manufacturer-specific battery-management data such as SOH, capacity-related values, odometer data, cell/module voltage information, temperatures, state of charge, pack voltage/current, protocol responses and adapter information where the selected vehicle/profile supports them.

Local processing: vehicle diagnostic responses are processed on the Android device and are not automatically uploaded to a Catalyst Fix Pro server.

Technical diagnostic sessions may be stored locally so the user can review connection problems, profile behavior and raw ECU/adapter responses. Depending on the diagnostic function, a technical session may also contain non-unique environment information such as the phone manufacturer/model, Android/API version, EV Battery Health version/build, adapter name/transport/firmware or protocol information, timestamps, response timing, errors and troubleshooting events.

Where a Bluetooth device address is included in technical diagnostic output, EV Battery Health is designed to mask it rather than export the full address by default.

Vehicle Profiles, Profile Revisions & Community Sharing

The application uses vehicle-specific diagnostic profiles. A profile can contain model information, battery-capacity basis, ECU/CAN addressing, read-only diagnostic requests, expected response prefixes, formulas and capability flags.

  • Built-in profiles: the current app includes 84 built-in vehicle/battery profiles. Different battery capacities or diagnostic variants may be represented by separate profiles. Built-in profiles follow a conservative read-only, SOH-first strategy and are not automatically equivalent to a fully verified profile.
  • USER/custom profiles: profiles created, edited or imported by the user are stored locally on the device and remain user-managed profiles.
  • Profile revisions: supported USER profile workflows may preserve revision history (for example USER v1, v2, v3) rather than silently replacing the previous configuration. A profile version number is a configuration revision and is not a trust or verification level.
  • Community exchange: users may intentionally export or share profile data with other people using Android sharing or other external communication tools.
No automatic profile cloud upload: the current architecture does not require a Catalyst Fix Pro account or automatic upload of community profiles. The informational Community Profiles site is available at https://evbatteryhealthprofiles.blogspot.com.

If a user explicitly shares an exported profile, diagnostic TXT/JSON file, report, screenshot or other attachment through email, cloud storage, messaging or another app, that external service processes the shared content under its own privacy policy. Users should review manually attached screenshots or files for personal information before sharing them.

New Vehicle – Profile Help & Optional AI-Assisted Analysis

If a suitable built-in profile does not exist, New Vehicle – Profile Help can collect a read-only diagnostic evidence package for profile development. The exported Help Request or diagnostic package may include vehicle/profile information, adapter/protocol information, diagnostic responses, timing, errors and other technical context needed to analyse a candidate profile.

No automatic AI upload: EV Battery Health does not automatically send Profile Help, diagnostic reports, raw ECU responses or profile files to ChatGPT, Claude, Gemini or another AI service. Export and sharing are initiated by the user.

If the user chooses to upload exported diagnostic information to an AI service, cloud storage provider, email service, messaging app or another third party, that third party processes the shared content under its own privacy policy and terms. Users should review exported files before sharing them and remove personal information they do not wish to disclose.

The intended convergence workflow is read-only: an initial USER profile may be tested on the real vehicle, the resulting evidence may be analysed, and a revised USER profile may then be imported for another test. The app is not intended to bypass SecurityAccess, gateway protection, encryption, manufacturer-only authorization or other vehicle security controls.

Local Storage

The application may store locally:

  • profile selections, USER/custom profile data and supported profile-revision information;
  • diagnostic session history and timestamps;
  • raw adapter/ECU responses and troubleshooting events;
  • technical environment metadata needed to understand a diagnostic session;
  • application settings;
  • user-created TXT/JSON exports or files explicitly saved by the user.

App-private data can normally be removed by clearing app data or uninstalling the application. Files intentionally exported to user-selected storage may remain until the user deletes them.

Internet Connectivity & Licensing

The OBD communication itself is local. EV Battery Health may require Internet access for Google Play license activation or occasional license-status verification in release builds.

License verification is separate from vehicle diagnostics and is not intended to transmit vehicle SOH, OBD responses, custom profiles or diagnostic-session data to Catalyst Fix Pro.

Permissions

Nearby Devices / Bluetooth

Purpose: discover and connect to supported OBD2 Bluetooth adapters.

Required for Bluetooth diagnostics: without Bluetooth access, the app cannot communicate with a Bluetooth OBD2 adapter.

Camera

Purpose: optional QR-code scanning for profile import. Camera permission is requested only when the user chooses the camera QR-scanning function. Camera frames are used for on-device QR decoding and are not automatically uploaded to Catalyst Fix Pro.

Notifications

Purpose: optional diagnostic/foreground-service status on supported Android versions. Notification permission is requested contextually rather than at first app launch. Denying notification permission is not intended to block core diagnostics.

Location

Current app behavior: EV Battery Health does not request Android precise or approximate location permissions for battery diagnostics.

File creation / export

Purpose: save or share user-requested diagnostic/profile files using Android system file/share mechanisms.

Device Identifiers & Personal Information

The EV Battery Health diagnostic layer is not designed to collect Android ID, IMEI, Google account identity, advertising identifiers or exact geographical location. It does not require a Catalyst Fix Pro user account. Vehicle or device information voluntarily included by the user in an exported file, screenshot or message is shared only when the user chooses to send that content through an external service.

Third-Party Services

EV Battery Health may use Google Play / Google Play licensing for distribution, platform security and license verification. These services operate under Google's own privacy policies and terms.

Security, Accuracy & Technical Limitations

Diagnostic limitation: a displayed value is only as reliable as the vehicle data, OBD adapter, profile addressing, response validation and formula used.
  • Not all vehicles expose SOH or equivalent battery-health information through OBD2.
  • Available parameters differ between vehicles and profiles.
  • Manufacturer protocols can vary by model year, battery version, ECU software and market.
  • Low-quality or clone OBD adapters may reject commands, truncate responses or behave differently from reference adapters.
  • Custom/community profiles may be experimental, incorrect or incompatible with a particular vehicle.
  • BMS-reported or profile-calculated SOH may differ from dealer, laboratory or professional battery tests.

Children's Privacy

This automotive diagnostic application is intended for adult users and is not directed to children.

Changes to This Policy

This Privacy Policy may be updated as the application, supported transports, profile system, licensing configuration or Google Play requirements change.

Terms of Service – EV Battery Health

1. Application Purpose

EV Battery Health is an Android application for reading electric-vehicle traction-battery diagnostic data in read-only mode using a compatible Bluetooth OBD2 adapter.

2. License

By purchasing EV Battery Health through Google Play, the user receives a license to use the application in accordance with Google Play terms and these Terms of Service.

3. Functionality and Compatibility

EV Battery Health functionality and the available diagnostic data depend on the selected vehicle, diagnostic profile and OBD2 adapter. A detailed description of the application's supported functions and operation is available on the Google Play listing and the EV Battery Health website.

4. Diagnostic Information

The diagnostic information provided by the application is intended for informational use and does not replace a professional high-voltage battery inspection by an authorized manufacturer or dealer when such an inspection is required.

5. Consumer Rights

Nothing in these Terms of Service limits any mandatory rights that users may have under applicable consumer protection laws.

6. Purchases and Refunds

Purchases and refunds are processed through Google Play in accordance with Google Play terms and applicable law.

7. Contact

For questions regarding EV Battery Health or these Terms of Service, contact:

Contact Us

For questions, bug reports, profile issues or privacy concerns:

© 2026 Catalyst Fix Pro. All rights reserved.

Home

EV Battery Health OBD2 battery-health diagnostics — paid, ad-free edition. Get it on Google Play Privacy Policy Community Profile...