ChatGPT Plus officially costs $20 per month, but the real price you pay often...

https://www.first-bookmarkings.win/chatgpt-plus-is-listed-at-20-per-month-but-you-might-pay-between-13-and-27

ChatGPT Plus officially costs $20 per month, but the real price you pay often varies between about $13 and $27. This depends on factors like VAT or GST taxes and extra fees added by app stores, especially on iOS and Android