ChatGPT Plus is officially listed at $20 per month, but the actual cost often...

https://dibz.me/blog/is-there-a-chatgpt-plus-free-trial-i-can-click-to-start-1223

ChatGPT Plus is officially listed at $20 per month, but the actual cost often ranges between $13 and $27 depending on where you subscribe. This difference is mainly due to local taxes like VAT or GST and additional fees charged by app stores