These iOS/ Android apps that are available these days, like there isn't any authority backing them up or something. Sometimes there are even mistakes found in translation in some Hadith apps. I mean we have to just plain trust the devs of the apps right? I'm not saying this is a bad thing, since some of the applications are very usefull. It's just that I've found bugs in the apps a handful of times, and reviewers report mistranslations sometimes too. The devs write the whole thing down themselves, so how can we verify the legitimacy of the content in their apps?