Great app... Phone storage hungry though

I love the social meaning of this app and its community based knowledge sharing. Ive learned quite a lot of creative things to do back home but.... The app is crazy hungry on phone storage ! It piles up hundreds of Mbs of cache wich I cant delete without deleting the whole app. I need an explanation. Thanks for developing such a great app though !

Cleartick about Snapguide - How-tos, Recipes, Fashion, Crafts, iPhone Tips and Lifehacks, v1.8.4