The price you pay depends on how much access you're buying at a time. There is no recurring billing, so you'll have to manually pay again.
Monthly: €12 Is money tight? Are you on the fence about this? Going on vacation soon? I get it, pay by the month.
Quarterly: €30 A quarter is three months. You save six Euros!.
Yearly: €110 A year is four quarters. You save a further ten Euros! Or--for the math nerds--€34 over paying monthy!
Other price categories
Would you like to get a group rebate by buying memberships for everyone in your school? Do you have some other use that I haen't thought of? I'd love to hear about it, so feel free to contact me.
Just what it says on the tin: a list of the prices I plan to charge, so you can make an informed decision.
I like learning about the thinking behind decisions, so here's a tidbit for you: the price differences are mostly due to the fact that I have to pay the company that processes credit cards for each transaction. I'm mostly trying to pay myself the same amount, either way.