Unlocking…

What just happened

• The unlock is stored in this browser, on this machine. No account was created and nothing about you is held here.
• New computer, or cleared your browsing data? Email from the address you paid with and we will put it back — usually the same day.
• Your specification sheets will now print with your own footer instead of ours.

Something not right? The unlock can be switched off again here.

Why you are seeing this

This page unlocks Pro when Stripe sends you back to it after a payment. You arrived without that, which normally means one of three harmless things:

• You have not bought it yet. The pricing page has the button, and explains exactly what the €29 does and does not cover.
• You bought it and lost the unlock — new machine, cleared browsing data, a different browser. Email from the address you paid with and we will restore it.
• You paid just now and something went wrong on the way back. Same address, same answer, and we will check the payment at our end.

Nothing you need is behind this page: every calculator, every formula and every standard on this site is free and always was. Carry on using them.