The data for Petty is provided by various state governments. Some of these state governments request ongoing information about total aggregated usage - including but not limited to how many times prices were looked at for stations in a certain state, and how many unique users were there in a certain state. These usage statistics are anonymous, and only sent on as aggregate totals. The data providers do not have access to the data itself - we aggregate it and pass it along. We do not pass information along in a way that would identify a particular user, where they've been, or what they've looked at.
When you change or modify a preference or setting in Petty, this preference is stored locally on your device so that the app remembers it the next time it is launched. Some preferences may also sync via iCloud. You can opt-out of iCloud syncing by deleting relevant app data from iCloud and/or turning iCloud off on your device.
To validate the receipt of an in-app subscription, your receipt data will be sent from your device to our server, which in turn validates it with Apple's server. This contains information relevant to the subscription including but not limited to purchase time and expiry time, but no personal details are stored or collected through this process.
If you have any questions, or would like to clarify something, feel free to get in touch through this link.