The privacy is very important, so the application collect and transmit only the required information to provide the services. The application does NOT collect, store or send any information that could personally identify you, your device or any other personal information.
The main functions
The main functionality of the application is to collect cell tower identifiers, signal strength and the device location (coordinates). This information is stored locally on your device and will never be transmitted without your explicit consent and action. The collected data can be exported to the file persisted on your device or shared to OpenCellID.org and Mozilla Location Services (MLS) projects. To ensure the privacy is protected, the application does NOT use any proxy server that could access your data in transit. All the traffic to external services is encrypted using HTTPS protocol.
Contribution to the OpenCellID.org project requires a personal Access Token (API Key) that needs to be entered in the application preferences. The key will only be used to upload the measurements to the project database and will never leave the device in any other scenario. Anybody who knows the Access Token has full control over the uploaded data, including browsing and deleting. It's your responsibility to protect the confidentiality of the Access Token!
Contribution to the MLS project uses shared API Key that doesn't provide the ability to browse the uploaded measurements.
Most of the features of the application require the foreground location permission, however, to start collecting measurements at device startup, the background location permission must be granted. The background location permission is required because, in this scenario, collecting is initiated by the system (in background), not by you (in foreground).
The optional functions
The automatic update check feature connects to the server to check if there is available a newer version of the application. The request contains the version of installed application and it is executed on the start of the application once a day.
The Contact developer feature will create a new email message in the selected email client. The message includes the following technical information about the device in order to help in troubleshooting:
- The application version
- The Android version
- The device manufacturer and model
The Export preferences or Export database feature will copy the application preferences or database to the dedicated folder on your device. If the files are placed on the shared memory, that any other application has access to, then the sensitive data (like the OpenCellID Access Token) may be unprotected.
The file logging at Debug level feature will create very detailed log files in the dedicated folder on your device. The log may contain the sensitive information, like your current location and the cell tower your device is connected to. This option should only be used temporarily for troubleshooting.
The troubleshooting helpers
The application has built-in the automated crash reporting system. The application failure reports are shared only with the developer and contain information about crash cause and device configuration. It does NOT include any information that can use used to identify you or the device.