The heat planner displays all the interesting information about the female dog. It is possible to record the heat of several dogs at the same time and collect the data. It is possible to quickly and conveniently enter the dog´s heat, and then the future heats are automatically calculated and displayed. With each entry the calculation becomes more accurate and there is a better overview of the future heats of the female dog. There is a calendar where you can get a quick overview of the next heat of the female dog. There is also the possibility to add past heatings and to change the date of late entries.