iMonitor is a System Information Monitor. It shows Memory/Storage/CPU/Data real-time usage which will help you know you system state better. Also, it can be placed in Today as a widget in iOS8.Its No AD Note: process list is not available on iOS9
SnapStats is a sophisticated devices stats tracker. Want to take a quick peek at your essential device stats but dont want to jump through all the hoops? Give SnapStats a try and see for yourself
Hoping to provide the just enough system stats for users, N Stats is designed as an extremely simple real-time system stats monitor. N Stats and its today widget monitor three system stats: * free memory* free disk space* network speedDifferent colors are used to indicate different stats, and the color of each stat can be customized. Each stats can be optionally enabled and rearranged.