How does upgrade from one yearly plan to another work?

If you decide to switch from one yearly plan to another before your upcoming renewal date, you will only need to pay a pro-rata amount for this upgrade.

This means your new plan will be valid for one year from the date of your recent payment, and you'll only need to pay the price difference between the two plans. 

The adjusted payable amount is calculated by subtracting the remaining value of your current plan from the total cost of the plan you're upgrading to.

Let's say you purchased the PRO (YEARLY) plan for $167.88 on 01 July 2023, with your renewal date being 01 July 2024. Now, if you choose to switch to the ULTIMA (YEARLY) plan on 01 January 2024 (6 months before the renewal date), the remaining amount of your current plan ($83.94) will be subtracted from the total payable amount ($419.88). 

Hence, your total payable amount will be $335.94 only.