Well, when it’s a waste of your valuable time. I don’t mean to pick on the free House & Home app in particular, but it strikes me as a bundle of advertising messages padded with trivia. It lived on my iPad for a few minutes until I retrieved the space for better use.
Most of my app downloads go the same way, even ones that cost a buck or two. What I really use on my iPad is the web browser and the Mail app. Sketchbook Pro is worth having. I have other apps, but I can’t even think what they are without looking.