Cool MateCEFR · A1 to C2
Six levels.
One feed.
CEFR is the global standard for English level. Pick yours, watch real clips, and an invisible Leitner system decides when each word comes back.
Free to start. No textbook. No streak shame.
Pick your level
Start where you are. Climb at your speed.
Each level page shows real challenge samples, the things you can actually do at that level, and answers to the questions learners ask first.
The first 500 words that unlock everything else.
Open A1 English →Hold real conversations, even if they are short.
Open A2 English →The threshold level. Where English starts working for you.
Open B1 English →Where you stop translating and start thinking in English.
Open B2 English →Sound like the person you are in your native language.
Open C1 English →Indistinguishable from a confident native, on a good day.
Open C2 English →How it works
Built for the way memory actually works.
Learn the phrase the way it's actually said.
Every challenge is a 3 to 15 second cut from a real show, news clip, or talk. You hear the rhythm, the stress, and the face behind the words.
An algorithm that times every clip.
An invisible Leitner box runs in the background. Each word comes back at the moment you're about to forget it. Fifty years of memory research, one tap.
Native audio, full speed and slow.
Every word has full-speed and slow-mo native audio. Tap once to copy the pronunciation the way a native actually says it.
Twelve native languages.
Definitions, examples, and grammar notes translate into your native language. Switch any time.
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