ChatGPT Plus is listed at $20 a month, but the actual price can range from...

https://station-wiki.win/index.php/Why_Do_My_Answers_Get_Worse_After_I_Hit_a_Limit_on_ChatGPT_Plus%3F

ChatGPT Plus is listed at $20 a month, but the actual price can range from about $13 to $27 depending on where you buy it. This difference comes from factors like VAT or GST taxes and fees added by app stores on iOS and Android