Zabbix - Track, record, alert and visualize performance and availability of IT resources
Numi App - Numi is a beautiful text calculator for Mac.
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.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.