It does not seem functional. There appears to be no way to reach out to the developer to give feedback, let alone, to send him screenshots of broken functions. Right off, on my 2018 MacBook Pro (13-inch) running High Sierra (10.13.6), clicking on the program's gear icon (for "Settings") brings up a splashscreen that is crippled, listing five settings . . . with missing text labels. All of these on-off switches, with no labels . . . one is driving completely blind to know what those settings are. The button at the bottom of "settings" is completely blank. No label. Other big rectagular buttons look like they're obviously supposed to have text labels. Instead, they are all blank. When pressing on something that appears to supposed to be a photo quiz, the page that is brought up Google Maps within the application, and fails, with the message "Google: This page can't load Google Maps correctly. Do you own this website?" Below that, in a different part of the application window, is the message, "For development purposes only." Every button pushed so far, in my brief experience with this app, is bringing up blank buttons, or maps that, when double-clicked upon, do nothing. Just now, it crashed. This app is clearly not ready for prime time. At least not on my system.