ChatGPT Plus lists at $20 but the actual cost varies by country and device....

https://www.bust-bookmark.win/chatgpt-plus-has-a-listed-price-of-20-per-month-but-the-actual-cost-you-pay

ChatGPT Plus lists at $20 but the actual cost varies by country and device. That’s because taxes like VAT or GST get added, and app stores charge their own fees. Plus, there’s no free trial to start with—so what you see isn’t always what you pay