Managed institutional access
Provision a product-specific seat pool, invite students by email, and keep personal payment details out of the classroom workflow.
Duolingo English Test prep for schools and programs
Manage Duolingo English Test preparation across the whole cohort
Give students current DET-style practice and give teachers one place for access, assignments, skill activity and progress reporting.
Written by Kate FengLanguage Education Specialist · Updated August 24, 2026
6,500+programs accept the Duolingo English Test
200+countries reached by DET test takers
2 daysstandard certified-result turnaround
10-160official DET score scale
Institutional workflow
One workspace for access, teaching and reporting
PrepEx keeps the operational work around Duolingo English Test preparation attached to the students doing it.
Batch student invitations
Add one learner or paste a prepared email list. Pending, active, and available capacity stays visible to the institution.
Assignments and due dates
Choose the exact practice students need, add instructions and a due date, then follow assigned and completed work.
Student activity
See recent practice, attempts, section patterns, and students who need attention without rebuilding the same view in a spreadsheet.
Progress reports
Review strengths and focus areas, add teacher notes, and export a current progress PDF for program or learner review.
Reusable seat capacity
Revoke a seat when a learner finishes and assign the available capacity to another student during the same institutional term.
Why DET programs need current task-level practice
The Duolingo English Test uses a broad mix of short adaptive tasks and longer integrated responses. A learner can know the format in general and still lose consistency on Interactive Reading, Interactive Listening, photo responses or the newer speaking flow.
PrepEx makes the task mix assignable. Teachers can set one focused task or a full practice test, see recent Reading, Listening, Writing and Speaking work, and follow the student without waiting for another class.
Assignments
Assign the complete current DET task mix
Target one format at a time or combine tasks into a structured weekly plan.
- Read and Select, Fill in the Blanks and Read and Complete
- Listen and Type
- Interactive Reading and Interactive Listening
- Write About the Photo and Interactive Writing
- Speak About the Photo, Read Then Speak and Interactive Speaking
- Writing Sample, Speaking Sample and full PrepEx DET practice tests
Teacher visibility
What a DET teacher dashboard should track
A DET program needs a clean view across many short tasks. PrepEx shows the student's practice trail, skill activity, assigned work and next focus without turning every attempt into a manual spreadsheet entry.
- 1Active learners, pending invitations and seat use
- 2Reading, Listening, Writing and Speaking activity
- 3Current task-family practice and skill patterns
- 4Assignments, due dates and completion
- 5Teacher notes and downloadable progress reports
Launch the program
From roster to live DET cohort
Confirm the cohort
Choose the seat count, program term and teaching team.
Invite students
Add learners individually or import the prepared email list.
Assign the first task
Set the exact DET work, instructions and due date.
Review and report
Use activity, skill patterns and reports to plan the next intervention.
Questions from schools
DET institutional access FAQ
DET acceptance, reach, turnaround and scale figures checked on August 24, 2026.
Is there a Duolingo English Test teacher dashboard for schools?
Yes. PrepEx gives DET programs managed student access, current task assignments, skill activity, progress and reports in one teacher dashboard.
Can teachers assign Duolingo English Test practice?
Yes. Teachers can assign focused Reading, Listening, Writing and Speaking tasks or a complete PrepEx DET practice test.
Does PrepEx cover current DET task types?
Yes. PrepEx covers the current 2026 task mix, including Interactive Reading, Interactive Listening, Interactive Writing and Interactive Speaking.
How does institutional DET access work?
The institution receives managed seat capacity. Teachers invite students by email, activate access and can reassign an available seat.
Can schools export DET progress reports?
Yes. Teachers can export a current progress report with recent practice, skill patterns, strengths, focus areas, notes and recommendations.
PrepEx for institutions
Book a 30-minute demo
Put your DET cohort in one teaching workspace.
PrepEx is independent and is not endorsed or approved by Duolingo. The Duolingo English Test is a trademark of Duolingo, Inc.