I see less of this on ios devices, but that may be because I keep up–to-date with newer hardware. I guess devs are targeting the older devices that are still in use -- together with the restricted multitasking on ios, this probably side-steps most memory problems.
(Except for the odd memory hog that occasionally gets terminated while in use, like the Facebook app).
(Except for the odd memory hog that occasionally gets terminated while in use, like the Facebook app).