ExamEdge publishes free tools for candidates: a full-length diagnostic mock, a negative marking calculator showing what a guess actually costs, a percentile-to-rank converter, and an exam countdown that turns days remaining into a revision plan.
Rank conversions depend on the cohort size and the year. Each tool states its assumptions; treat any output as an estimate rather than a prediction.
The negative marking calculator is the one most candidates should run once. Most people guess far more than the arithmetic justifies, and seeing the expected value of a guess at your own accuracy rate changes how you sit the paper.
With four options and a quarter-mark penalty, a blind guess has an expected value of zero. That much is widely known. What is less obvious is how quickly it turns positive once you can eliminate even one option — and how sharply it turns negative if you are guessing on questions where you have eliminated nothing but feel confident.
The calculator takes your own accuracy on guessed questions, which most candidates have never measured, and shows what your guessing is costing or earning across a full paper.
Phrased the way they arrive, answered so each one stands on its own.
Yes, one full-length diagnostic with the weakness map at the end of it, on the free tier. The calculators need no account at all.
It is an estimate based on the cohort size you enter or the previous year’s figures. Actual rank depends on the cohort that sits the paper, which nobody knows in advance.
Each one answers a single question outright, then shows the working.
Checked by the Product desk on 1 September 2026. Corrections go in the page, dated, rather than quietly.
Pricing is on the page, in the open, with the counting rule written next to it. Nobody has to book a call to find out what it costs.
See pricingForty minutes with an implementation engineer — your classes, your fee heads, your grading scheme, entered as we go. No slides, no sample school.