GasApp Privacy Policy

Effective date: November 12, 2026.

GasApp is provided by Isaac Sterling. This policy describes GasApp, including its public release. You do not need an account to use this version.

Data on your device

GasApp stores your vehicle settings, payment preference, directions preference, and new visit history on your device. Visit history can include a station, the time you opened directions, and estimated savings. A visit is inferred from a directions handoff; GasApp does not track your arrival in the background.

These settings and new history are not saved to a GasApp account. They may be included in device backups that you control through Apple. GasApp also keeps a temporary station cache so the map can open while an update is requested.

Data sent to run the service

To find stations, GasApp sends the current or selected starting coordinates, search radius, fuel type, and cash or credit preference to its server. To find a recommended station, it also sends tank capacity, fuel level, fuel economy, and the value you assign to travel time. These inputs are used to calculate the recommendation. The payment preference does not include card numbers or payment account details.

The server receives technical request information, including the IP address, request time, app or device request information, and response status. Logs can contain starting coordinates and station identifiers. GasApp uses these records to operate the service, investigate errors, and prevent abuse. The application log storage is currently configured to retain logs for 30 days.

GasApp creates a random installation identifier to limit requests. The server stores a hash of that identifier with request counts. Expired count records are removed during a later request after their daily window ends.

App verification

GasApp uses Firebase App Check and Apple App Attest to check that requests come from a valid app. The device sends app-verification information to these services and sends an App Check token with protected API requests.

See Firebase privacy information and Apple's privacy policy.

Maps and directions

Apple provides map display, place search, and route calculations. These features can send search text and route coordinates to Apple. When you open directions, the selected navigation app receives the destination and, when needed, the starting location. That provider's privacy policy applies to its service. GasApp does not request background location access.

Usage analytics

GasApp uses TelemetryDeck to understand how the app is used and how well it works. The app sends anonymous events, such as how long a recommendation took, how many stations it compared, and whether a route could not be calculated. Events include basic app and device information, such as the app and iOS versions. TelemetryDeck receives a hashed identifier, not your name or an account. Events do not include your location, stations, prices, or vehicle settings.

On first launch, GasApp asks Apple whether the app was installed from an Apple Search Ads campaign. If so, it keeps only the campaign, ad group, and keyword identifiers and includes them with its analytics events. GasApp does not request permission to track you and does not link this information to your identity.

See TelemetryDeck's privacy policy.

Data from earlier beta versions

Earlier beta versions used accounts. If a saved session is available, GasApp can use it to retrieve your old protected settings and history, then save a copy on your device. This import does not delete the original cloud records or replace newer local settings.

Old account records can include an account identifier, email address, saved preferences, and earlier directions or savings records. Existing cloud records and migration backups are retained to prevent data loss during this change. They do not currently have an automatic deletion schedule. You can contact us to request access to or deletion of these records. We may need to verify that the account is yours before acting on a request.

Retained sign-in software

GasApp retains Google Sign-In and Firebase Authentication software to restore saved sessions from earlier beta versions. This software can send account identifiers and account information to Google or Firebase during restoration. It can also collect technical, diagnostic, and usage information under the provider's data practices. This can include device and app information used to maintain the service and analyze its use. Removing the sign-in screen does not disable this software or all of its data collection.

See Google's privacy policy and Firebase's data collection information.

Beta feedback

If you use GasApp through Apple TestFlight, TestFlight provides installation, usage, and crash information to help us test the app. Feedback you send can include your message, contact details, screenshots, and diagnostic information. We use it to investigate problems and improve GasApp. See TestFlight and privacy.

Service providers and data use

GasApp uses Google Cloud to host its API and database, and Firebase, Apple, and TelemetryDeck for the functions described above. Our API and database run in the United States. Other provider services can process information in other locations under their own terms.

GasApp does not include an advertising SDK or the Firebase Analytics SDK. We do not sell personal data or use it for targeted advertising. We share data with the providers needed to operate these functions. We may also disclose data when required by law.

Your choices

You can change vehicle and payment settings in GasApp. You can turn off location access in iOS Settings and choose a starting location in the app. Deleting the app removes its local app data from that device; it does not remove separate device backups or earlier cloud account records. Apple controls TestFlight data and device backups under its own settings and policy.

For privacy questions, or a request about older cloud records, contact isaac.je.sterling@gmail.com.

Changes

We will update the date and this policy when GasApp's data practices change.