I'm planning on buying an iPad for my grandparents (88 and 85 years old). They will only use 4-5 apps to keep track of us like Instagram, Safari, Dropbox, Wikipedia My question to you who have the original iPad, is it common that apps are not backwards compatible? Do you reckon they might have problems with apps not supporting their iPad version? Also when browsing, is that a common issue or not? Neither of us need that hassle so then I might buy a newer model. Thankful for answers!