Memory · Working memory
How long a thread can you hold?
Digits flash one by one. Type them back. Then do it backwards. Working memory, isolated.
~90 sec Click or 0–9 Results unlock free
Three profiles
What your span says about your study capacity.
Profile
Long-Chain Recaller
You hold a long thread without losing the start.
Profile
Standard Span
You hold the average working memory load reliably.
Profile
Burst Span
Compact, accurate recall in shorter chains.