Prep Eduのテストルームと同様に、強力なAI採点機能を備えたPTEおよびIELTSの試験対策に特化しています。
Prep Eduのテストルームと同様に、強力なAI採点機能を備えたPTEおよびIELTSの試験対策に特化しています。
OETStudy は月間 4,738 訪問、前月比成長率 +264.2%、料金体系無料を記録しています。Prep Edu は月間 1,414,975 訪問、成長率 -19.8%、料金体系有料を記録しています。

OETStudy is a free practice platform for the Duolingo English Test. It offers a large bank of exam-style questions, AI-powered scoring for speaking and writing tasks, CEFR vocabulary checks, and progress analytics to help learners target a higher score.
Prep Edu is an online language-learning and exam-preparation platform combining structured IELTS, TOEIC and HSK courses with AI-powered practice. Its Prep AI Virtual Speaking Room and Virtual Writing Room simulate real exam conditions and return feedback on grammar, pronunciation, vocabulary, ideas and logic, while the Teacher Bee AI companion offers round-the-clock guidance. Learners get a personalised roadmap, mock tests, progress tracking and mobile access for studying at home.
| 項目 / 指標 | ![]() | |
|---|---|---|
| 公式ドメイン | oetstudy.com | prepedu.com |
| 料金モデル | 無料 | 有料 |
| 月間訪問数 | 4738 (4,738) | 141.5万 (1,414,975) |
| 前月比トラフィック増減 | +3437 (+264.2%) | -34.97万 (-19.8%) |
| 主要市場とシェア | 🇺🇸 アメリカ合衆国 (100%) | 🇻🇳 ベトナム (78%) |
| 月間ダイレクト訪問数 | 1537 | 47.91万 |
| ユーザー評価 | 4.4 | 4.1 |
| 対応プラットフォーム | ウェブサイト | ウェブサイト |

OETStudy is a free practice platform for the Duolingo English Test. It offers a large bank of exam-style questions, AI-powered scoring for speaking and writing tasks, CEFR vocabulary checks, and progress analytics to help learners target a higher score.
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.
Prep Edu is an online language-learning and exam-preparation platform combining structured IELTS, TOEIC and HSK courses with AI-powered practice. Its Prep AI Virtual Speaking Room and Virtual Writing Room simulate real exam conditions and return feedback on grammar, pronunciation, vocabulary, ideas and logic, while the Teacher Bee AI companion offers round-the-clock guidance. Learners get a personalised roadmap, mock tests, progress tracking and mobile access for studying at home.
Rehearse exam-style speaking tasks with AI scoring and multi-layer feedback covering grammar, pronunciation, fluency, vocabulary and how well your ideas are organised.
Submit written answers and receive automated scoring with suggestions on structure, vocabulary range and accuracy to raise your band score.
A companion that answers questions, walks through difficult tasks and keeps learners motivated between lessons.
Structured IELTS, TOEIC and HSK programmes, a PrepTalk English speaking course, entry tests and mock exams that mirror the real format.
Prep Eduのテストルームと同様に、強力なAI採点機能を備えたPTEおよびIELTSの試験対策に特化しています。
Prep Eduのテストルームと同様に、強力なAI採点機能を備えたPTEおよびIELTSの試験対策に特化しています。
主要な英語試験向けに自動AI採点を提供しますが、Prepほど構造化された動画レッスンには重点を置いていません。
特化型ネイティブ級のAIと厳選された人間の講師で、初日から話そう
IELTS向けの優れたAIスピーキング指導を提供していますが、Prepにあるような充実したライティングコースのライブラリがありません。
IELTS向けの優れたAIスピーキング指導を提供していますが、Prepにあるような充実したライティングコースのライブラリがありません。
Prepが複数の試験をカバーするのに対し、適応型模擬試験を用いたDuolingo English Test対策に特化しています。
Prepが複数の試験をカバーするのに対し、適応型模擬試験を用いたDuolingo English Test対策に特化しています。

特化型Speak is an AI-powered language learning app built around speaking rather than studying. Its Speak Method loops through three stages — learn the phrases native speakers actually use, practice them until they become automatic, and apply them in real conversation with the AI Speak Tutor, which returns immediate feedback on your pronunciation and phrasing. The curriculum is created by language education experts and personalized by AI, with lessons matched to your level.
特化型Speak is an AI-powered language learning app built around speaking rather than studying. Its Speak Method loops through three stages — learn the phrases native speakers actually use, practice them until they become automatic, and apply them in real conversation with the AI Speak Tutor, which returns immediate feedback on your pronunciation and phrasing. The curriculum is created by language education experts and personalized by AI, with lessons matched to your level.

Focuses exclusively on TOEFL test preparation with automated scoring, whereas Prep supports a wider variety of language exams.
Focuses exclusively on TOEFL test preparation with automated scoring, whereas Prep supports a wider variety of language exams.