DETPractice

DETPractice is a focused study service for people preparing for the Duolingo English Test. It suits learners who want drills, mock exams and automated feedback together; its strongest case is breadth of practice, while the 90-day mock-test access window and non-official scores call for realistic expectations.

Overview

DETPractice concentrates on one exam rather than serving as a general language-learning platform. Its bank of more than 18,000 questions, daily content updates and adaptive full-length mock tests offer a substantial pool for repeated practice. Estimated scores arrive in 1–5 minutes, useful for a quick progress check, but they remain estimates: neither the questions nor mock tests replace the official Duolingo English Test.

Courses, lessons, guides and other learning materials broaden the offering beyond question drills. The AI tutor can answer DET questions, check grammar, translate or rewrite text, and generate practice content. DETPractice describes itself as a Platinum Partner for Duolingo English Test preparation; the practical value for learners lies in the range of study tools, not in treating practice results as official outcomes.

Key features

Question practice and mock tests

The question bank covers all question types, and adaptive full-length tests add a way to rehearse the exam format. That combination can support a structured routine, particularly for learners who want frequent practice rather than a small set of sample questions. Mock-test access expires after 90 days, so learners should plan to use purchased tests within that period.

AI feedback and study support

AI-powered scoring and correction address speaking and writing, while score tracking and a study plan can help learners monitor preparation. The AI tutor adds grammar checks, translation, rewriting and generated practice material. These tools make self-study more varied, though automated feedback is best used to guide revision rather than stand in for official scoring.

Learning materials

Courses, lessons and guides give learners options beyond timed tests and response correction. This is useful for people who want explanations and broader preparation materials alongside practice, rather than relying solely on mock exams.

Pricing

The free tier costs nothing and includes 300 practice questions and limited evaluations; the broader free access includes all question types, 300+ questions, basic explanations and limited access to some features. It is a sensible way to explore the question formats, but the capped bank and limited evaluations make it a sampler rather than a complete preparation plan.

Basic: $9.90 a month, billed monthly, with 18,000+ questions and 10 AI corrections/month. It suits learners who need a larger practice bank and occasional response feedback, but does not include mock tests in the stated plan features.

Plus: $19.90 a month, billed monthly, with 18,000+ questions, 3 mock tests/month and 60 AI corrections/month. This is the clearest fit for regular practice-test use without paying for the highest correction allowance.

Pro: $39.90 a month, billed monthly, with 18,000+ questions, 10 mock tests/month and unlimited AI correction. Frequent mock-test takers and learners who expect to submit many speaking or writing responses get the most room here.

The plans make test frequency and correction volume the key trade-off. The free tier caps practice and evaluations; Basic limits corrections and offers no stated mock-test allotment; Plus limits both mock tests and corrections. Payment information is processed and stored by Stripe.

Platforms

DETPractice runs on the web and has apps for iPhone or iPad through the App Store and for Android through Google Play. A single account can be used in a browser with supported learning history, so switching between mobile study and browser sessions need not mean starting over.

Who it's for

DETPractice is best suited to learners preparing specifically for the Duolingo English Test who want a large practice bank, adaptive mock tests and automated speaking and writing feedback in one service. Its free tier can help newcomers sample all question types. Learners who need official test scoring, preparation for a different exam, or mock tests without the 90-day access limit should look elsewhere.

Pros and cons

Pro: More than 18,000 questions and daily content updates provide a broad pool for repeated DET practice.

Pro: Adaptive full-length mock tests return estimated scores in 1–5 minutes, giving learners a prompt practice benchmark.

Pro: Speaking and writing corrections, score tracking, a study plan and an AI tutor support several parts of self-directed preparation.

Pro: Web, iOS and Android access with supported learning history makes it practical to study across devices.

Con: Mock-test access expires after 90 days, which may not suit learners who need to spread preparation over a longer period.

Con: The free tier is limited to 300+ questions, basic explanations and limited feature access, so sustained study may require a paid plan.

Con: Practice questions, estimated scores and AI corrections are not substitutes for the official Duolingo English Test.

Alternatives

For a different exam, Language Test Prep Apps is the broader category to compare. Choose TOEFL TestReady if you are preparing for TOEFL rather than DET; its TOEFL Practice Online plan includes one full TOEFL iBT practice test with scoring. AlfaPTE is the more relevant alternative for PTE learners, with a free plan that includes 20,000 practice questions, limited AI scoring, one full mock test and one sectional mock test.

Gurully is another PTE-focused option, with 7-day and 15-day Prime Membership plans. Cambridge Play suits learners looking for a different kind of language-learning app, with free access to Writing and Speaking through stage 5 of each level and one daily gift. E2Language is an alternative for people seeking courses with lessons, practice activities and live classes.

IELTS by IDP App is the exam-specific choice for IELTS learners, offering free preparation articles, videos, webinars, podcasts, quizzes and flashcards. PTE Tutorials is another PTE option, with free practice questions, model answers and mobile app access. TOEFLMock is worth considering for TOEFL preparation; its free plan includes the first full test and the first test in each section.

Verdict

Choose DETPractice if you are preparing for the Duolingo English Test and want a large question bank, quick estimated mock scores and AI feedback across speaking and writing. The Plus plan is the balanced option for learners who want a regular but limited mock-test schedule; Pro makes more sense for frequent testing and extensive corrections. Look elsewhere if you need official scoring, another exam’s preparation, or mock-test access that does not expire after 90 days.