Apps similar to Como include Battery Health, which has a free version. Other options are Battery Logger. Between them they cover Mac.
With Battery Health, you can easily see all the important information about your MacBook's battery, such as current charge level, battery capacity, power usage, number of times it has been charged and much more.
United Kingdom
An application to count battery usage.
Application will start count whenever power cable was disconnected from notebook, and will reset the count whenever the power is connected.
Application will ignore the count during sleeping, or powered off, but still record these activitie.
