ChatGPT Plus lists for $20 a month, but the final cost varies by country and...

https://wiki-dale.win/index.php/What_Should_I_Do_Right_Now_to_Avoid_an_Accidental_$20_Renewal_After_a_Trial%3F

ChatGPT Plus lists for $20 a month, but the final cost varies by country and device. That’s because taxes like VAT and GST get added depending on your location. If you subscribe through an app store, expect a higher price due to their commission markup