Hi,
No personal data whatsoever is collected by jofonet. No data is sent to a server, or stored on your phone by the app.

Almost all ads try to get your device's advertising ID. Here is a link that can help you block it on Android or iOS if you'd like to:
https://www.eff.org/deeplinks/2022/05/how-disable-ad-id-tracking-ios-and-android-and-why-you-should-do-it-now

Thanks, Jofo
support@jofonet.net