Why this is completely free

Because revision is not a product

A mark scheme is not worth £9.99 a month. It is worth whatever it costs to write it down and put it where a sixteen-year-old can find it at eleven at night before a mock. Everything here was written to be taught from and revised from, and charging for it would only mean the students who need it most are the ones who do not get it.

Because it costs very little to run

This is deliberately a small, plain website: flat PHP pages and a MySQL database on ordinary shared hosting. There is no app, no video platform, no team and no investors expecting a return. The bill is a domain name and a hosting plan, which is less than most people spend on coffee in a month. The real cost is the writing, and that is done because it is worth doing.

Because there is nothing to sell

The usual way a free site pays for itself is by selling attention or data. Neither is on the table here. There are no adverts, no third-party trackers and no accounts, so there is no profile of you to build and nothing about your revision to sell on. The site counts its own visits, in a way that cannot tell who you are (the privacy page says exactly how), and your revised ticks never leave your own browser — you can check that in the network tab. The only cookies are the ones remembering which exam board you picked and whether you are reading as a student or a teacher.

What “free” actually gets you

• 39 lessons of notes, written to the specifications.
• 354 exam questions, with mark schemes and model answers.
• 264 key terms, as glossaries.
• 195 downloadable files — slides, notes sheets and printable papers.
• A teacher view on every lesson, with the answers and the teacher copies of the files.

Yes, you can use it in your classroom

Teachers are welcome here, and the teacher view exists for exactly that. Print the notes, put the slides up, set the questions as homework, hand the worksheets out, adapt any of it for your class. You do not need to ask and you do not need to credit anyone, though a link back is always kind. What would not be fair is repackaging the lot and selling it to other teachers — see the terms for the plain-English version.

What would make this stop being free

Nothing that is planned. If the hosting ever outgrows what one person can cover, the answer will be to ask for help openly rather than to put a paywall across a mark scheme. If that day comes it will be said on this page, in plain language, before anything changes.

How to help, if you want to

• Tell someone in your class or your department it exists.
• Tell me when something is wrong. A wrong date in a revision guide is worse than no revision guide.
• Use it. A resource nobody opens is a resource that was not worth writing.

More about how the site is put together is on the about page, and what is and is not stored is set out on the privacy page.