Ive been looking for something close to multitasking on my iPads for years... So far its been pretty stable and I love having more than one window available at a time. I got it when it went free briefly but I would spend the $2 on it. Only thing missing is a settings menu of some kind; would like the ability to change text font or resize the windows which is why Im only giving it four stars. Im using this app on my iPad Air 2 running 8.1, 128G.
OpalescentAngel about Double browser Pro 2 in 1