Your renewal price is half of the original purchase price, so if you purchased a calculator for £25 then the renewal price is just £12.50.
If you are using the embed code version of our calculators then you’ll need to renew your license to continue receiving the calculator. This is because we host the calculator files on our servers.
To purchase your renewal license please click the products you’d like to renew from the list below. A coupon will automatically be added to the basket so that you get your 50% discount.