ChatGPT Plus lists for $20, but the actual price you pay often varies from...

https://wiki-cafe.win/index.php/Does_the_ChatGPT_Mobile_App_Offer_a_7_Day_Plus_Trial%3F

ChatGPT Plus lists for $20, but the actual price you pay often varies from about $13 to $27. This difference mainly comes from extra taxes like VAT or GST and fees added by app stores