ChatGPT Plus is listed at $20, but the actual price you pay can vary from about...

https://www.pfdbookmark.win/the-listed-20-price-for-chatgpt-plus-often-varies-between-13-and-27

ChatGPT Plus is listed at $20, but the actual price you pay can vary from about $13 to $27. This difference comes from factors like taxes (VAT or GST) and the fees that app stores add on top