Make the graph move. See why the answer changes.

Specific Tax, PPF and Elasticity are free to use on this page. Pick one, tap to begin, and drag the lines when the lesson asks.

No signup. Nothing to install.

Get a pass: £23.99, paid once

Lasts two years. Nothing renews. The three free lessons stay free.

The current library

Interactive graphs. More are added regularly.

Learn from a guided lesson, then switch to Explore and move the graph yourself.

Free permanently, with no account: Specific Tax · Elasticity · PPF. The rest open with a founding pass.

  • Supply & Demand4 lessons
  • Elasticity1 lessonFree
  • Market Relationships1 lesson
  • Income Elasticity2 lessons
  • Indirect Taxes2 lessons1 free
  • Subsidy1 lesson
  • Price Controls2 lessons
  • Production Possibility Frontier1 lessonFree
  • The Labour Market2 lessons
  • Externalities4 lessons
  • Merit and Demerit Goods1 lesson
  • The Lorenz Curve1 lesson
  • AD-AS, SRAS and LRAS4 lessons
  • Import Tariff1 lesson
  • Comparative Advantage1 lesson
  • Bond Prices and Yields1 lesson
  • Customs Unions2 lessons

Why you freeze on a graph

You can copy a finished diagram. You cannot copy the reason it got there.

That is the moment. The question asks what happens when something moves, the picture in your head is the finished one, and there is nothing underneath it to work from. Each of these is good at something. Not one of them shows you the change.

The picture
GraphaconShows it

You watch the line move, so you can rebuild it from the cause instead of recalling a shape.

A textbookDoes not show it

The diagram is finished before you arrive. You can copy the final state without ever learning what led to it.

The explanation
GraphaconShows it

One because at a time, beside the part of the graph it is about.

A textbookDoes not show it

A wall of text beside a still picture. You are expected to run the animation in your head, as if you already knew the graph you opened the book to learn.

Your pace
GraphaconShows it

Stuck on step three? Stay on step three. Nothing moves on until you do.

A videoDoes not show it

It runs at its own pace, which is rarely the pace you got stuck at, and it cannot wait while you try it.

The exam
GraphaconShows part of it

Shows the movement a written answer depends on, one step at a time, so you can put it back together under pressure.

A past paperShows part of it

The truest guide there is to what the exam actually asks. It cannot show you the line moving to get there.

We would rather tell you this than have you find it out. Graphacon does not mark what you wrote, and it does not hand you a past paper. We plan to work with past papers and mark schemes. Everything above is what the app does today, not what it might do later.

Founding access

Two years. One payment. Nothing renews.

Two years covers a full A-level course. The pass includes the current library and new graphs added during the access period.

Library
16+ interactive graphs
Additions
New graphs added regularly
Use it on
Phone or desktop
Renewal
No automatic renewal
Founding price when it opens
£23.99

total for two years

Standard access later: £35.99 for one year

One payment. No automatic renewal.

Clear before you choose

FAQs

Is the free version a limited teaser?

No. Specific Tax, Elasticity, and PPF are complete modules and remain free.

Is this a subscription?

No. The founding pass is one payment and nothing renews automatically.

Does it work on a phone?

Yes. Graphacon is a website designed for phone use. It can also be saved to a home screen for quick access.

Which exam board is it for?

Any of them. A supply and demand diagram is the same picture whichever board you sit, so the lessons keep to the wording all of them accept rather than one board's house style. Graphacon is independent and is not endorsed by any exam board.

Is every planned graph already available?

No. The current library has 16+ interactive graphs, and new graphs are added regularly.

Elasticity, PPF and Specific Tax, free

You cannot learn a moving diagram from a still one.

Read one of the three in a textbook. Then move the lines yourself and watch the answer change, and see which version you can still explain a week later.