The official ChatGPT Plus price is $20 per month, but in reality, the cost can...

https://cesarsuniquenews.theburnward.com/why-do-referral-codes-not-stack-for-chatgpt-plus-trials

The official ChatGPT Plus price is $20 per month, but in reality, the cost can vary from about $13 to $27 depending on where you buy it. This difference usually comes from taxes like VAT or GST and extra fees charged by app stores on iOS and Android