DETPractice

Overview

DETPractice concentrates on one exam: the Duolingo English Test. Its question bank has more than 18,000 questions, with content it says is updated daily, and adaptive full-length mock tests return estimated scores in 1–5 minutes. These tools can give study sessions structure, but the practice questions and scores are not substitutes for the official test.

Courses, lessons, guides and other learning materials extend the service beyond drills. Its 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.

Key features

Practice, tests and feedback

Speaking and writing responses receive AI-powered scoring and correction. Combined with score tracking and a study plan, that can help learners identify areas to revisit; automated feedback should still be treated as a practice aid, not an official assessment. The free tier covers all question types, but limits learners to 300+ practice questions, basic explanations and limited access to some features.

Study across devices

DETPractice runs on web, iOS and Android. The same account can be used in a browser and mobile apps, with supported learning history carried across, which suits learners who switch between devices. Mock-test access expires after 90 days, so it is worth factoring that window into a study schedule.

Pricing

DETPractice is freemium, with monthly paid plans. The free plan costs 0.00 USD per free and includes 300 practice questions and limited evaluations; it is a useful way to begin, but the question and evaluation caps constrain sustained practice.

• Basic: 9.90 USD per month, billed monthly, with 18,000+ questions and 10 AI corrections per month. It suits learners prioritizing question practice who can manage with a small correction quota; it does not include a stated monthly mock-test allowance.
• Plus: 19.90 USD per month, billed monthly, with 18,000+ questions, 3 mock tests per month and 60 AI corrections per month. This is the more balanced choice for learners who want regular full-length practice alongside feedback.
• Pro: 39.90 USD per month, billed monthly, with 18,000+ questions, 10 mock tests per month and unlimited AI correction. Frequent mock-test takers and learners relying heavily on response feedback get the broadest stated allowances; the higher fee is harder to justify for lighter study.

Payment information is processed and stored by Stripe. Online customer service is available Monday–Friday from 10:00 to 19:00, with email responses within one business day.

Platforms

Use DETPractice in a browser or through its iPhone and iPad app or Android app. Supported learning history carries across web and mobile under the same account.

Who it's for

DETPractice is best for learners preparing specifically for the Duolingo English Test who want question practice, mock tests and speaking and writing feedback alongside study materials. Its free access can support an initial trial of the format; learners who need substantial practice are more likely to benefit from a paid plan. It is not a fit for people preparing for a different English-language exam, and none of its practice materials replace the official DET.

Pros and cons

Pros

• Broad DET practice: More than 18,000 questions, adaptive mock tests, courses and guides cover several parts of preparation in one service.
• Feedback with a clear quota ladder: Plans range from 10 monthly AI corrections on Basic to unlimited corrections on Pro, making it possible to match spending to feedback needs.
• Cross-device continuity: Browser and mobile access use the same account and support learning history across platforms.

Cons

• Free access is capped: 300+ questions and limited evaluations are enough to sample the service, not to unlock the full question bank and feedback experience.
• Mock tests are tiered and time-limited: Plus allows 3 a month and Pro 10, while access expires after 90 days; Basic has no stated monthly test allowance.
• Automated scores are not official: Mock-test estimates and AI corrections can inform practice, but cannot stand in for the real DET.

Alternatives

For a different exam or study style, consider Language Test Prep Apps. DETPractice is specifically for the DET; these alternatives include PTE and IELTS-focused options.

• PTE Tutorials is another freemium, cross-platform choice for PTE learners, with free practice questions, model answers and mobile app access.
• AlfaPTE is worth considering for PTE preparation if a large free question bank matters: its free plan includes 20,000 practice questions, limited AI scoring and one full and one sectional mock test.
• Celpip AI is the relevant option for CELPIP rather than DET study; its free tier includes three scored sessions and free Reading and Listening practice.
• Gurully offers PTE-focused preparation and a Prime Membership — PTE, 7 days plan at 9.00 USD per month, billed 7 days, for access to paid exam-preparation content.
• IELTS by IDP App is an IELTS option for learners who want preparation articles, videos, webinars, podcasts, quizzes, flashcards and test booking and results access in its free app.
• APEUni PTE is a PTE alternative whose VIP plan offers unlimited speaking and writing AI scoring and unlimited scored mock tests during the VIP period.
• PTE Magic offers PTE strategy materials, including a 39.00 USD one-time Strategy Pass with 100-day access to a 2026 video masterclass, exam templates, and grammar and collocation materials.
• IELTS Online Tests is a web-only alternative for IELTS learners, with one-time purchases for video lessons and reading practice materials.

Verdict

Choose DETPractice if you are preparing for the Duolingo English Test and want a single service for practice questions, mock tests, study materials and AI feedback. Its tiered correction and mock-test allowances make it adaptable to different study intensities, but check the monthly caps and 90-day mock-test expiry before paying. Look elsewhere if you need preparation for another exam or want official test scoring rather than practice estimates.