A large whiteboard is pasted on the refrigerator in my house. thats right. Items such as missing ingredients and problems if you forget to do it are itemized.Of course, I think that smartphone users will enter characters in the ToDo list app from the beginning, or take pictures and go shopping ... First of all, entering characters is troublesome! The photos are easy, but its hard to tell which ones have been purchased and which ones still have to be bought! Isnt it easy to forget to buy when you go around many houses and search for various things? The photo was drawn and bought, but it cannot be erased.So this is the app. Take a picture of the memo you wrote on the whiteboard or paper, and then trace the line of the errand you have done with your finger to erase it! Ah, its convenient!In order to completely eliminate the inconvenience, I also tried to eliminate advertisements. Use it!