How do I see how many total compasses I have stockpiled, please?

We already have an answer for a similar question which you can see here:
How many compasses do I have and how many more do I need to open next island?

If you have more answers to add you can do that below.

Stockpiled compasses are kept in your game data and not shown within the game. Unless you can decipher the game code, you have to ask customer service to look at your game data if you want to know how many you have.