If you are one of those who is liooking to find the difference between Initial Public Offer (IPO) and Follow on Public Offer (FPO) than one thing for sure is that you are thick into stock market and you have a great going ahead.
Now we come to the meat of the subject and to make it easier the IPO is for the companies which have not listed on an exchange and FPO is for the companies which have already listed on exchange but want to raise additional funds by issuing some more equity shares.
Hope it was simple for you to you to understand the difference between an IPO and FPO.