ChatGPT Plus lists at $20 per month but the real cost often ranges from $13 to...

https://www.a1bookmarks.win/chatgpt-plus-has-a-listed-price-of-20-but-the-actual-cost-you-pay-can-vary

ChatGPT Plus lists at $20 per month but the real cost often ranges from $13 to $27 depending on where you subscribe. This difference comes from extra fees like VAT or GST taxes and app store markups on iOS and Android