PeakHour is a beautiful, real-time network-traffic visualizer that lives in your menu bar. It provides an instant view of your Internet or WiFi activity in real-time. PeakHour is great for monitoring your Internet or WiFi connection, and can help you determine how much bandwidth your computers and devices are using at any given time.
Monitor network performance of capable devices in real-time: routers, WiFi, Macs, PCs, NAS, servers and more.
Keep an close eye on your usage; set up alerts to warn if you’re exceeding your quota.
PeakHour 3 now includes a powerful history engine that stores usage and performance data for as long as you wish.
The History view lets you look back at usage and performance over any time period: hours, days, weeks, months or years.
PeakHour’s real-time view has been enhanced to support zooming and scroll-back. You can now scroll sideways back in time (up to several hours) to see past activity. You can also zoom the view in or out to see more or less detail.
As well as monitoring usage, PeakHour can now raise notifications (via Notification Center), send an email or execute a script/program when a certain usage threshold has been reached.
Configuration made even easier
For PeakHour 3, the Configuration Assistant has been completely re-designed to make it easier than ever to discover compatible devices.
Periodically export your usage to a file, allowing for offline recording or analysis.
Easy to set up
Configuration Assistant guides you through set up to help you get the right configuration.
Monitor your network in real-time: Internet, WiFi, servers, other computers; any compatible device.
The only bandwidth monitoring tool to support both UPnP and SNMP, making it more likely to work with your devices.
Monitor your usage
Powerful, flexible usage monitoring helps you track your Internet usage and stay within your limit.
Monitor as many compatibile devices as you like, each one with its own specific look.
From the source
Measure performance where it counts – from the device itself.
Keep your ISP honest
Monitor your own usage. Know your Internet Provider is delivering the speeds you’re paying for.
Support for SNMPv1/2c/3 and High Capacity (64bit) counters.
Requirements: Intel, 64-bit processor OS X 10.9 or later
Home Page – http://peakhourapp.com/