How to purchase AptOS?

Could you please elaborate on the steps required to purchase AptOS? I'm quite interested in this cryptocurrency and would like to know the detailed process. Is it necessary to have a specific wallet or exchange platform? Also, what are the potential risks involved in this purchase? Additionally, how can I ensure the security of my transaction and protect myself from frauds? Lastly, are there any fees associated with purchasing AptOS, and if so, how much are they? Thank you for your guidance.