ChatGPT Plus has a listed price of $20 per month, but the amount you actually...

https://www.slideserve.com/aaron_ward92/why-does-chatgpt-plus-cost-more-on-android-than-on-the-web

ChatGPT Plus has a listed price of $20 per month, but the amount you actually pay can range from about $13 to $27. This difference happens because of extra fees like VAT or GST, plus app store charges on iOS and Android