I'm taking a trip with my bike so wanted to transfer my iSMARTtrain install to my portable (a Dell Mini 9

According to the app's preference, the data is stored in ~/Documents/iSMARTtrain Data/iSMARTtrain.db
It's the first time I've looked for them, but I can't find the folder iSMARTtrain Data or the database file iSMARTtrain.db in the specified ~/Documents/ location. Spotlight can't find them either - even searching for invisible items.
Can anyone help me find my database so that I can copy it? TIA