How am I supposed to add price to my products?

The app is cool. Very polished interface with easy navigation. But I would really appreciate if you guys could add Japanese currency to the app also. Otherwise, the app will be almost useless. The CoinKeeper add in the cost screen is very annoying... Correct that and Ill give 5 stars to the app...

Alephgregorianos about Grocery Mate - Easy to Use Shopping List, v1.3.1