Do photo apps take up too much space?

There's an iphone app called collect which is a photo journal where you can take a pic everyday which would end up being around 700-800 photos. The app itself uses 15mb (without any photos) but will this take up too much space on my phone if i posted a photo everyday?

I do not think that it would but I would not risk it if I were you because then if it did then you would have to delete some of the photo's that you took.

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