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

https://www.mediafire.com/file/yjut74llakej1hf/pdf-37467-61545.pdf/file

ChatGPT Plus is listed at $20 a month, but the actual price you pay can vary between $13 and $27 depending on where you sign up. Differences in taxes like VAT or GST and app store fees can change the final cost