Adaptive · about an hour
The DET changes difficulty as you answer, which means practice at a fixed level rehearses a test you will not sit. Ours moves with you, and the writing and speaking samples come back marked rather than recorded and forgotten.
Free plan, no expiry · every exam on one paid plan from $14.99/month
Reported as10–160, in steps of 5
Generated for your attempt, every attempt. Nothing here is a stored paper being handed round.
Items are pitched at a CEFR rung and the rung moves with your answers, so the practice stays at the edge of what you can do instead of drifting easy.
The DET item types, generated fresh, with the explanation and the proving line for every answer.
Marked against the traits the DET reports on, with your own sentences quoted back rather than a generic comment.
20 seconds to prepare, then 30 to 90 seconds — 30 is the exam's own minimum, so it is a real threshold and not an invented one.
Taken from the published format and held to it. A clock that is generous by thirty seconds trains a habit that costs marks on the day.
| Task | Prepare | Answer |
|---|---|---|
| Spoken response | 20 s | 30–90 s |
The DET reports Literacy, Comprehension, Conversation and Production alongside the overall score, and universities increasingly read the subscores. Practice that returns one number tells you nothing about which of the four is holding you back, which is the only thing worth knowing before you book the test again.
Yes. One section practice a day plus two writing and two speaking evaluations a month, with explanations for every answer. No card, no expiry.
Yes. Items are generated at a CEFR level and the level follows how you are actually doing, rather than staying where you started.
No. Everything is generated for your attempt. The DET is heavily protected against item sharing, and generating fresh material is both the lawful answer and the one that makes a practice score mean something.
It is a practice estimate, labelled as one, with the reasoning shown. It is not an official Duolingo result and no practice tool can issue one.
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No card and no trial clock. See what the marking tells you before you decide whether it is worth paying for.
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