ChatGPT Plus lists at $20 a month, but what you pay can vary by country and...

https://iris-wiki.win/index.php/If_I_Never_See_the_Fallback_Message,_Is_ChatGPT_Pro_a_Waste_of_Money%3F

ChatGPT Plus lists at $20 a month, but what you pay can vary by country and device. This is because countries add taxes like VAT or GST, and app stores add their own fees