Board Thread:Questions and Answers/@comment-24212208-20150328052734/@comment-24659969-20150501095649

Difference of mechanism. Android 4 and below does not allows app to take display screen input or output without system access permission (aka root) or even if they able too, can not take the native input/output.

That is why every recording app in Android if used on Android 4.x or below requires either root/jailbreak OR at least extra program (usually thru connected PC).

Reason why? Because legal problems. For iOS system, for example you screen-record a CrunchyRoll stream which is official pay-to-watch site. This recording file is not easily transferred to PC since every file management is managed by iTunes.

However on Android, file can be freely transferred from phone to PC and vice versa, making piracy of such video can become quite common. Now then, since most of the Android device makers are not big-company like Apple or Microsoft, they can easily be sued by those with copyright problems. In short: it is money problem.