Very poor - don't waste your money on this
Doesn't say which direction train to take. Doesn't give journey durations. No timetables included - live or otherwise. Appears to be sponsored by Burger King as it's the only fast food listed. I deleted the app and just used a free metro map plus google.
Not happy at all
This app only appears to work if you are (a) online and (b) actually in St. Petersburg at the time. I'm neither at the moment, so it's totally useless. They should make it very clear to people. I've wasted my money.