Report updated Apr 18, 2026

TL;DR:The Duolingo English Test (DET) mobile app acts as a secure, mobile-based companion for the Duolingo English Test, facilitating identity verification and proctoring.|TL;DR:The Duolingo English Test (DET) mobile app acts as a secure, mobile-based companion for the Duolingo English Test, facilitating identity verification and proctoring.
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DET - Duolingo English Test is an established education app that is completely free. With a 3.3/5 rating from 14 reviews, it shows polarized user reception.

What is DET - Duolingo English Test?

The Duolingo English Test (DET) mobile app acts as a secure, mobile-based companion for the Duolingo English Test, facilitating identity verification and proctoring. It is designed for international students and professionals who require a fast, flexible, and affordable English proficiency certification. By enabling on-demand, remote testing, the app differentiates itself from traditional, center-based exams. It serves as a vital utility in a broader ecosystem that prioritizes accessibility and efficiency over traditional testing infrastructure.

Current Momentum

v1.4

Performance Improvements and bugfixes

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

IELTS Prep App

IELTS Prep App

By Aleksei Naumov

Other Rivals

IELTS Prep App – Practice
Cambridge English Exam Prep
Quizlet: More than Flashcards
ELSA Speak - English Learning
British Council EnglishScore

7-Day Rank Pulse 🇺🇸

Education

No ranking data

EducationGrossing

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Remote ID VerificationStandard

Secure submission of ID information and facial scanning for identity authentication.

Proctored Environment SetupDifferentiator

Guided room and ear scans to ensure a secure, compliant testing environment.

Companion RecordingDifferentiator

Configures the mobile device to act as a secondary camera to record the computer during the test.

Fast Results DeliveryDifferentiator

Provides test results within 2 days of completion.

On-Demand TestingDifferentiator

Allows users to take the test online anytime without needing an appointment.

How much does it cost?

Free
  • Free practice tests available
  • Paid test registration required for certification

The app serves as a free utility for test-takers to facilitate the paid certification process, positioning itself as a cost-effective alternative to traditional testing centers.

Who Built It?

Duolingo app icon 1
Duolingo app icon 2
Duolingo app icon 3
Duolingo app icon 4

Duolingo

(45M)

Providing accessible, gamified education across languages, literacy, and specialized subjects for learners of all ages.

Portfolio

4

Apps

Free 3
Education67%

Who is Duolingo?

Duolingo has established a dominant position in the education category by successfully bridging the gap between casual gaming mechanics and formal learning objectives. Their primary moat is a proprietary gamification engine that drives industry-leading engagement, which they are now leveraging to expand into a multi-subject platform including Math, Music, and Chess. A key strategic signal is their move into high-stakes certification with the Duolingo English Test, diversifying from consumer-grade learning into formal academic and professional proctoring.

Who is Duolingo for?

  • Lifelong learners
  • Students
  • Travelers; for early childhood titles
  • The primary audience is parents
Intense

Portfolio momentum

Maintains an intense development cycle with 18 updates across 3 active apps in the last 6 months, with the most recent major release occurring 13 days ago.

Last release · 13d agoActive apps · 3

What do users think recently?

Analysis in progress, available soon

What is the competitive landscape for DET - Duolingo English Test?

How's The Education Market?

How does it evolve in the Education market?

ChartRankChange
iOSFree#255
iOSFree#97NEW

The rivals identified

The Nemesis

IELTS Prep App

IELTS Prep App

4.7 (581)

Aleksei Naumov

🚀

Direct competitor in the high-stakes English proficiency certification market with a focus on remote/digital testing preparation.

Head-to-head analysis pending — refresh this report for a detailed comparison.

Contenders

IELTS Prep App – Practice

IELTS Prep App – Practice

Syed Sahib Sultan

Provides comprehensive preparation tools and booking features for the world's leading English language test.

Cambridge English Exam Prep

Cambridge English Exam Prep

TCK Systems LLC

Offers official preparation materials for Cambridge English exams, targeting the same demographic of international students and professionals.

Peers

AI-Powered Study Tools

Personalized Study Feed

ELSA Speak - English Learning

ELSA Speak - English Learning

4.8 (108.8K)

Elsa Corp

Focuses on English proficiency improvement, often used as a precursor to taking formal certification tests.

British Council EnglishScore

British Council EnglishScore

British Council EnglishScore

Offers a mobile-based English proficiency test that provides a certificate, serving as a direct alternative for quick, remote assessment.

The outtake for DET - Duolingo English Test

Strengths to defend, gaps to attack

Core Strengths

  • Strong brand recognition through the Duolingo ecosystem
  • Seamless, integrated mobile-to-desktop proctoring technology
  • Highly efficient, on-demand testing model

Critical Frictions

  • Limited functionality as a utility-only app
  • Low volume of user reviews
  • Dependency on desktop hardware for test completion

Growth Levers

  • Expansion into more academic partnerships
  • Further integration of AI for instant practice feedback
  • Gamification of the preparation phase

Market Threats

  • Established incumbents increasing their own digital testing capabilities
  • Potential regulatory changes regarding remote testing validity
  • Emerging AI-based competitors

Key Takeaways

DET - Duolingo English Test is an established education app that is completely free. With a 3.3/5 rating from 14 reviews, it shows polarized user reception.

Where Is It Heading?

Stable

The report reflects a strategic shift in positioning the app as a free, efficiency-focused utility for the broader Duolingo certification ecosystem.

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by DET - Duolingo English Test, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

The report reflects a strategic shift in positioning the app as a free, efficiency-focused utility for the broader Duolingo certification ecosystem.

shifted

Pricing Model Reclassification

shifted

Strategic SWOT Update

shifted

Refined Value Proposition

Cite this report

Marlvel.ai. “DET - Duolingo English Test Intelligence Report.” Updated Apr 18, 2026. https://marlvel.ai/intel-report/education/det-duolingo-english-test

Agent Markdown (.md)·

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