Fix log
What we have fixed.
Every fix you might notice, newest first, in plain words.
October 2026
A retaken observation is marked against your careful result
When you spotted an odd result and retook it (for example a flame test colour), the app still marked your answer against the first, careless take. It now marks it against the careful result, and the bench shows that result too.
The top bar fits on phones with long exam board names
On a 390-pixel-wide phone, a long board name pushed the page sideways. The course label now shortens with an ellipsis instead.
Four A-level physics mark schemes no longer reward a known mistake
In free fall, simple harmonic motion, interference and standing waves, a listed mistake could land close enough to the right working to earn a method mark. The tolerances and numbers are fixed, and a correct follow-on from an earlier slip now earns its marks (error carried forward).
Force on a wire: answers worded in several words are recognised
The method mark for the A-level force on a current-carrying wire question missed some correct answers that used a two- or three-word phrase. Each phrase now counts as one idea.
Mitosis: the method mark follows on from your earlier answer
In the A-level mitosis question, a correct method using your own earlier (wrong) value now earns the method mark, as exam mark schemes allow.
Questions no longer give away their own answer
The osmosis crossing-point and enzyme optimum pH questions quoted your earlier reading in the introduction, which gave the answer away. They now ask the question cleanly.
Answers are checked for the precision the question asks for
When a question asks for 2 significant figures or 1 decimal place, the answer is now marked on that, as it would be in the exam. Earlier attempts keep the marks they had.
Choosing your tier works on practicals with a board version
On practicals with both a tier choice and an exam-board version, the board version counted as work started, so the tier could not be chosen. It can now.
Convex meniscus drawn the right way up
In the read-it-yourself scale close-up, a meniscus read from its top (convex, curving up in the middle) was drawn curving down. It now curves the right way, so the line you read from is in the right place.
Units are read as quantities
An answer of 1050 g now scores where the mark scheme says 1.05 kg, and 194 s is no longer taken as 194 ms. Powers, dots and "per" in units are read properly too.
See also how we check the work.