What's the difference between Imoji and emoji?

I think an emoji is a coded picture and Imogi is the software app. Is an Imogi the picture made by the Imojiapp software? Can "Imogi" be used as a noun or only as an adjective (e.g., Imogi sticker)? So does a user change an emoji into an Imoji sticker with Imojiapp? Is it correct to use the term "Imogis" or would it be more correct to use "emojis"? For instance, "I used an emoji and created an Imoji sticker with my Imoji software"?

(I'm an editor who's editing an article about Imogis used in the classroom and just want to make sure I'm using the terms correctly -- any help would be appreciated.)