Fanny is described as 'free Notification Center Widget and Menu Bar application to monitor your Macs fans' and is a Fan Speed Tool in the System & Hardware category. There are more than 25 alternatives to Fanny for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is Open Hardware Monitor, which is both free and Open Source. Other great apps like Fanny are AIDA64 (Paid), Sidebar Diagnostics (Free, Open Source), SpeedFan (Free) and HWMonitor (Freemium).
Monitoring temperatures and status of system components such as CPU, GPU and hard disk drive, fan speeds * Monitor your hard disk drive temperature and the health status of your hard disk drive by constantly checking the critical S.M.A.R.T. attributes.
smcFanControl is the perfect application for all those Macbook owners getting burned by their hot-running Macbook. This Mac application allows you to control the speed of the fan in your MacBook so you can avoid it running hot.
Intel® Power Gadget is a software-based power estimation tool enabled for 2nd Generation Intel® Core™ processors or newer. It provides real-time processor package power information in watts using energy counters.