ChatGPT Plus is listed at $20 per month, but the actual price you pay can range...

https://astro-wiki.win/index.php/ChatGPT_Plus_Price_in_Croatia:_Is_It_Close_to_$27%3F

ChatGPT Plus is listed at $20 per month, but the actual price you pay can range from about $13 to $27. This difference comes from factors like taxes (VAT or GST) and extra fees from app stores such as Apple or Google