How to find your save file and player log on WINDOWS
All BOOK OF HOURS game files are found here:
C:\Users\[YOUR USER NAME]\AppData\LocalLow\Weather Factory\Book of Hours
Replace [YOUR USER NAME] with your actual computer’s username, e.g.
C:\Users\Alexis\AppData\LocalLow\Weather Factory\Book of Hours
The folders are hidden by default, so you may need to change to Show Hidden Files in the Explorer view settings – or just paste the path into the Explorer location bar.

How to find your save file and player log on a MAC
Player logs are found here:
~/Library/Logs/Weather Factory/Book of Hours
And save files are here:
~/Library/Application Support/Weather Factory/Book of Hours

How to find your save file and player log on LINUX
Harder to choose a representative screenshot on Linux! but you should find the files here:
~/.config/unity3d/Weather Factory/Book of Hours
How to find your version number (any OS)
Boot up BOOK OF HOURS and look in the bottom left hand corner of the main menu screen. The version number is displayed there.

Thank you!