The tests
Memory and thinking are made of separate abilities, so each test focuses on one of them.
- The number memory test flashes a number and adds one digit after every correct answer.
- The visual memory test lights up a pattern of squares for you to tap back.
- The verbal memory test asks whether each word is new or one you have already seen.
- The sequence memory test flashes squares in order and adds one step every level.
- The chimp test hides numbers after your first tap so you have to find the rest from memory.
- The working memory test is a 2-back task: keep the last two letters in mind while new ones arrive.
- The attention span test is a deliberately boring task that shows how often your focus slips.
- The Stroop test measures how much the written word slows you down when you name its ink colour.
- The IQ test gives you picture and number puzzles: find the rule and pick the missing piece.
- The spatial reasoning test asks you to tell a rotated copy of a shape from its mirror image.
- The vocabulary test mixes real and made-up words and estimates how many English words you know.
- The reading speed test times a short story and checks what you understood.
- The mental math test gives you sums to solve in your head against the clock.
Get a fair result
- Find a quiet moment and close notifications; a single interruption can end a memory run.
- Expect your scores to rise over the first few attempts. That is a normal practice effect, so compare later attempts with each other.
- Tiredness and stress lower memory and attention scores more than most people expect.
Know the limits
These are self-check versions of well-known research tasks. They are not normed psychological or medical assessments and cannot give a clinical diagnosis or an official IQ. If you are worried about your memory or concentration, talk to a doctor.