---
title: "Kerfox - free revision app for GCSE, A-Level and university"
description: "Free revision app from GCSE to PhD: lessons that move, exam questions marked against the AQA, OCR, Edexcel and WJEC mark schemes, and a memory engine that brings each topic back before it slips."
image: "https://www.kerfox.app/og.webp"
url: "https://www.kerfox.app/"
---
Kerfox

# Study that grows with you.

Lessons that move, questions that bite back, and a fox who keeps count. From GCSE to PhD, Kerfox turns revising into something you will actually want to come back to.

[Join the waitlist](https://www.kerfox.app/waitlist)

TARAXACUM KERFOXII · FIELD NOTES No.1 · GROWS ANYWHERE

## Everything grows from good lessons.

Kerfox is a full curriculum you can watch happen: lessons that move, questions that push back, and a memory that grows quietly underneath.

Lessons that move

Ideas are drawn and simulated, not described. Watch a gas find its pressure, a proof assemble itself, a wave interfere, one honest frame at a time.

Questions that bite back

Every drill question carries its solution three layers deep: the answer, the working, and an open door into why the method works at all.

Memory that grows

The engine notices what you find hard before you do, and brings it back just before it slips.

SpeciesTaraxacum kerfoxii

PlateNo.2

RangeGCSE to PhD

HabitGrows anywhere

## Climb the stem.

Three real questions from the bank - one concept, GCSE to university: how force falls with distance.

GCSE

What is the weight of a 5 kg mass where g = 10 N/kg?

## The new morning.

Kerfox is nearly ready, and the first batch of testers is boarding now. Join the waitlist and we will write to you the morning the doors open.

[Join the waitlist](https://www.kerfox.app/waitlist)

TARAXACUM KERFOXII · FIELD NOTES · SOWN EVERY MORNING