A small software for coments on facebook

Hello I need a simple software for coments on facebook I need to be able to login on facebook,,,the software to recognise by name all the groups that i am a member - select group and coment to all post from that group I need a delay option so i can set delay between coments I dont pay in advance so if you ask money in advance then dont make bid I pay when software is done and u show me it works