NOTE: Free version of N Stats is available. If you don't need support for optionally enabling and rearranging different stats, try the free version first. And there's no ads in the free version.
Hoping to provide the "just enough" system stats for users, N Stats is designed as an extremely simple real-time system stats monitor. Each stats can be optionally enabled and rearranged.
N Stats and it's today widget monitor three system stats:
* free memory
* free disk space
* network speed
Different colors are used to indicate different stats, and the color of each stat can be customized.
Today widget of N Stats is also included, and you can enable it in the Today view of Notification Center.