Duolingo English Test (DET) — Duolingo
The Duolingo English Test is an adaptive, online English proficiency test about an hour long that universities and other institutions accept. It reports an overall score from 10 to 160 and four subscores; there is no pass mark, and each institution sets its own minimum. SummitCert offers a study aid with 1000 flashcards, 350 practice questions and a timed 80-question practice set that covers the multiple-choice-style tasks; it is not a simulation of the adaptive test.
One-time purchase · lifetime access · study on any device
Everything included — in full detail
This is exactly what you unlock. No vague promises — real numbers, straight from the portal.
Your full practice pool — 350 questions total, written to mirror the real exam blueprint, with full answer explanations for every question.
Including Reading, Listening, Speaking, and more.
A complete, realistic exam-day simulation with the same question count and time limit as the real thing.
Covering every key term, concept, and framework you're expected to know.
Hand-picked walkthroughs and explainers organized by topic.
Visual breakdowns of the frameworks and models the exam tests you on.
The exact formulas and calculations you need, ready to review before test day.
A searchable glossary so unfamiliar terminology never slows you down.
See your accuracy by domain, spot weak areas early, and follow a built-in study schedule.
Tailored to this exam: it knows your progress and weak areas, remembers your earlier chats, and picks up where you left off on your other devices.
Study anywhere — your progress syncs on the device you are using and picks up where you left off.
No subscriptions, no renewals — buy once and keep studying until you pass.
See the Duolingo English Test portal
Real screenshots — this is exactly what you'll be studying in. Click to zoom in.
How would you like to start?
Try before you buy, or jump straight into full access.
Topics you'll drill
4 core topics pulled straight from the real question bank.
- Reading
- Listening
- Speaking
- Writing
Duolingo English Test exam requirements & cost
Straight from the certifying body — separate from what we charge for the study portal.
The Duolingo English Test is an adaptive test taken online in about one hour, and it reports an overall score from 10 to 160 in 5-point increments (Duolingo English Test). The overall score is the average of four subscores, listening, speaking, reading and writing, each also on a 10 to 160 scale. There is no pass mark: each university or other institution sets the score it requires. There is no pass or fail result; the test reports a score and each institution sets its own minimum. The portal's percentages are a self-check only. The Duolingo English Test costs $70 per attempt, and the final price is shown at checkout (Duolingo English Test, October 2026). Open to anyone; each institution decides whether it accepts the test and which score it requires.
Real pass rate, retake policy, scoring, and a study timeline for Duolingo English Test — free, no purchase required.
Common questions
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