Zabbix - Track, record, alert and visualize performance and availability of IT resources
DataMan – Data Usage Widget - DataMan – Data Usage Widget is an application that enables its user to know how much data he has spent from the total internet package he is using.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
NetCounter - NetCounter is a simple network traffic counter for EDGE/3G and Wi-Fi. It shows your data usage.
NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.
Stickynote Widget - Stickynote Widget is an app by KF Software House that comes up with features to help you in putting sticky notes on your phone’s home screen so you can stay motivated to achieve your life goals.