ChatGPT Plus starts at $20 a month but the price you see can be higher...

https://www.social-bookmarkings.win/chatgpt-plus-lists-at-20-a-month-but-the-actual-price-you-pay-can-vary-from

ChatGPT Plus starts at $20 a month but the price you see can be higher depending on your country and device. Taxes like VAT or GST get added based on local rules. If you buy through an app store, expect a markup to cover their fees