ChatGPT Plus is listed at $20, but the actual cost can vary from about $13 to...

https://www.bestbookmarks.win/chatgpt-plus-lists-at-20-per-month-but-the-real-cost-often-ranges-from-13-to

ChatGPT Plus is listed at $20, but the actual cost can vary from about $13 to $27 depending on where you subscribe. Differences come from taxes like VAT or GST and extra fees charged by app stores on iOS or Android