
SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.

OETStudy records 4,738 monthly visits with +264.2% month-over-month growth and Free pricing. Studocu records 39,297,122 monthly visits with +1.1% growth and Freemium pricing.

AI-powered practice and scoring for the Duolingo English Test
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | oetstudy.com | studocu.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 4.74K (4,738) | 39.3M (39,297,122) |
| MoM Traffic Delta |
| +3.44K (+264.2%) |
| +430.47K (+1.1%) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🇺🇸 United States (12.3%) |
|---|
| Direct Visits / mo | 1.54K | 6.5M |
|---|
| User Rating | 4.4 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|

AI-powered practice and scoring for the Duolingo English Test
A large bank of DET-style items spanning speaking, writing, listening, and reading, graded by difficulty so you can practise at the level you need.
Speaking and writing submissions are scored automatically, evaluating pronunciation, fluency, grammar, and content structure with suggestions for improvement.
Check your vocabulary level against CEFR bands and build word lists clustered around the question types you practise most.
Practice statistics and score analysis highlight weak areas and show how your performance changes over time.

Share and access study materials worldwide — with AI study tools built in
Search a vast, student-contributed library of lecture notes, summaries, study guides and past exams organised by course and institution.
Generate notes, summaries and revision material from documents so you can study the essentials instead of re-reading everything.
Turn study material into interactive quizzes and flashcards so you can test yourself and target weak spots.
Use built-in text-to-speech to listen to study documents on the go, useful for revision during commutes or downtime.

SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.

Gamified flashcard and quiz creation from PDFs, but lacks Studocu's extensive crowdsourced student note library.
Free / Open-sourceStronger free flashcard creation and practice tests from notes, but less reliance on crowdsourced university document sharing.
Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing
SpecialistTailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.

Excellent AI-driven video explainers and interactive study sets, but lacks Studocu's massive repository of crowdsourced course notes.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
Converts multi-format lecture materials into audio podcasts and quizzes, but has a smaller community note repository.
AI English speaking coach with instant pronunciation feedback

PTE practice tests with instant AI scoring and realistic mock exams
Very similar shared university document database and study tools, but with a strong European student community focus.

SpecialistConverts course notes into personalized flashcards and mind maps, but lacks crowdsourced document sharing.
SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.
Gamified flashcard and quiz creation from PDFs, but lacks Studocu's extensive crowdsourced student note library.
Free / Open-sourceStronger free flashcard creation and practice tests from notes, but less reliance on crowdsourced university document sharing.
Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing
SpecialistTailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.
Excellent AI-driven video explainers and interactive study sets, but lacks Studocu's massive repository of crowdsourced course notes.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
Converts multi-format lecture materials into audio podcasts and quizzes, but has a smaller community note repository.
PTE practice tests with instant AI scoring and realistic mock exams
Very similar shared university document database and study tools, but with a strong European student community focus.
SpecialistConverts course notes into personalized flashcards and mind maps, but lacks crowdsourced document sharing.