Six short drills for attention, reaction and memory. No accounts, no ads and no data collection — your browser does all the work.
Quick tests are useful to notice your own state: reaction speed and attention swing with sleep, coffee and fatigue more than you would guess. One drill a day is already a trend.
Reaction: average of five rounds, false starts do not count. Aim: hits in 30 seconds. Memory: sequence length. Typing: correct characters per minute. Stroop: points in 45 seconds, a wrong answer costs a point. Click speed: clicks per second.
Not a single request to a server: the pages pull no fonts, images or analytics. Bests live in your browser’s localStorage — everything is counted in your browser: no accounts, no analytics, no server calls. scores live in localstorage — clear the site data and they are gone.