# DET Practice vs Language Reactor DET Practice records 115,015 monthly visits with +15.9% month-over-month growth and Freemium pricing. Language Reactor records 1,878,769 monthly visits with +0.6% growth and Freemium pricing. | Metric | [DET Practice](https://openaitools.app/tool/det-practice) | [Language Reactor](https://openaitools.app/tool/language-reactor) | | :--- | :--- | :--- | | Website URL | https://www.detpractice.com | https://www.languagereactor.com | | Categories | AI Language Learning, AI Testing, AI Writing Assistants, AI Speech Recognition | AI Language Learning, AI Chatbot, AI Assistant, AI Text-to-Speech | | Pricing Model | Freemium | Freemium | | Monthly Visits | 115,015 | 1,878,769 | | MoM Growth Rate | +15.9% | +0.6% | | Primary Market | Vietnam | United States | | Direct Visits | 51,206 | 1,454,530 | | Review Score | 4.3 | 4.4 | | Saved Count | 2 | 14 | | Supported Platforms | Website | Website | ## DET Practice DET Practice is a preparation platform built specifically for the Duolingo English Test, positioning itself as a Platinum Partner of the exam. Its centrepiece is a question bank of more than 18,000 items that is updated continuously, paired with model answers and explanations so learners can see not only what the correct response is but why a high-scoring answer works. The platform reports over 400,000 users and 40,000 mock tests taken. The mock exam experience is designed to mirror the real test: adaptive difficulty, the same task types, and AI scoring that returns a detailed evaluation report within a few minutes. Alongside the mock tests sit dedicated speaking and writing correction services — covering tasks such as Write about the Photo, Interactive Writing, Writing Sample, Read Aloud, Listen then Speak and Speak about the Photo — where learners receive AI scoring combined with teacher guidance. For learners who want structure, there are courses covering the DET speaking and writing sections developed by ESL instructors, plus a broader AI tutor that corrects grammar, translates across languages and helps generate or polish writing. DET Practice also bundles exam-day perks: members can claim a coupon for a discount on the actual DET fee, and results within 24 hours through a sponsor invite link. The site holds a 4.8/5 rating across more than 1,850 reviews, with feedback frequently highlighting question quality and the depth of mock exam reports. **Pricing & Plans:** DET Practice is freemium: you can start free with Google or email and try core practice and mock tests. Paid membership tiers unlock correction services, courses and unlimited access, and the site notes that cancellations are possible at any time. - **18,000+ question bank:** More than 18,000 practice questions refreshed daily, with high-scoring sample answers and detailed explanations for each item. - **Full-length adaptive mock tests:** Adaptive mock exams that mirror the real DET format and difficulty, scored by AI with a detailed evaluation report in one to five minutes. - **Speaking and writing AI correction:** AI scoring and teacher guidance for DET speaking and writing tasks, including Write about the Photo, Interactive Writing and Speaking Sample. - **Guided DET courses:** Structured video and text courses covering DET speaking and writing sections, built by ESL experts for comprehensive mastery. - **All-in-one AI tutor:** An AI tutor that corrects grammar, translates between languages and polishes or generates writing tailored specifically to the Duolingo English Test. **Strengths:** Very large, continuously updated question bank with explanations and model answers; Adaptive mock exams closely modelled on the real DET format, with AI scoring and detailed reports; Human-backed as well as AI correction for speaking and writing, which covers the hardest sections to self-assess; Recognised Platinum Partner status plus member coupons on the real test fee and 24-hour result routing [Profile (Markdown)](https://openaitools.app/tool/det-practice.md) ## Language Reactor Language Reactor, formerly known as Language Learning with Netflix, takes the position that you learn a language fastest from content you would watch anyway. Its browser extension layers dual subtitles over Netflix and YouTube, letting you see your target language alongside a translation, pause on a line, replay it, and hover or click any word to get an immediate definition, pronunciation, and grammatical context. Reading support extends the same idea to ebooks, PDFs, and ordinary web pages, so news articles and novels become study material. The vocabulary engine is what separates it from a plain subtitle extension. Words and phrases you look up are saved automatically, and the PhrasePump trainer turns them into short, contextual review prompts. Because items are pulled from real sentences you actually encountered, review feels more like remembering a scene than drilling a deck, and export options let you move curated lists into external tools such as Anki. Language Reactor offers more than twenty languages and works through a Chrome-style browser extension plus the web app. It is aimed at intermediate learners who have outgrown textbook dialogues but still need scaffolding to follow native-speed speech, though beginners can also slow subtitles down and translate read-along text. Free usage covers the core experience, with a Pro tier for heavier learners. **Pricing & Plans:** Freemium. The core dual-subtitle and lookup experience is free to use, and a Pro subscription adds higher limits, advanced AI features, and additional tools. Current plan details and pricing tiers are listed on the official site. - **Dual subtitles on Netflix and YouTube:** View your target language together with a translation, pause, replay single lines, and jump back to the previous subtitle with a hotkey. - **Instant word and phrase lookup:** Hover or click any subtitle word to see definitions, part of speech, and pronunciation without leaving the video. - **PhrasePump spaced-repetition trainer:** Automatically saves looked-up words and phrases, then quizzes you with the original context to build durable recall. - **Reading mode for books and websites:** Bring the same translation and lookup workflow to ebooks, PDFs, articles, and other web pages. - **AI explanations and Anki export:** Ask AI for grammatical breakdowns and explanations, and export curated vocabulary lists to tools like Anki. **Strengths:** Turns everyday Netflix and YouTube viewing into structured practice; PhrasePump reviews vocabulary in real context rather than isolated cards; Same workflow extends to books, PDFs, and websites; Wide language coverage and an active user community **Limitations:** Tied to the browser extension model, so it is not a standalone mobile app experience; Slow subtitle control still requires a desktop browser for the best results; Some advanced features sit behind the Pro subscription [Profile (Markdown)](https://openaitools.app/tool/language-reactor.md) ## Frequently Asked Questions ### How do DET Practice and Language Reactor compare in monthly traffic? DET Practice has 115,015 monthly visits, while Language Reactor has 1,878,769. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? DET Practice has a month-over-month growth rate of +15.9%; Language Reactor has +0.6%. ### How does pricing compare? DET Practice: Freemium. DET Practice is freemium: you can start free with Google or email and try core practice and mock tests. Paid membership tiers unlock correction services, courses and unlimited access, and the site notes that cancellations are possible at any time. Language Reactor: Freemium. Freemium. The core dual-subtitle and lookup experience is free to use, and a Pro subscription adds higher limits, advanced AI features, and additional tools. Current plan details and pricing tiers are listed on the official site. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Immersive Translate](https://openaitools.app/tool/immersive-translate) | 2,392,414 | -9.4% | Freemium, Free Trial | Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows. | [.md](https://openaitools.app/tool/immersive-translate.md) | | 2 | [PTE APEUni](https://openaitools.app/tool/apeuni-com) | 2,212,623 | +11.2% | Free | Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing | [.md](https://openaitools.app/tool/apeuni-com.md) | | 3 | [Prep Edu](https://openaitools.app/tool/prep-edu) | 1,414,975 | -19.8% | Paid | Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms | [.md](https://openaitools.app/tool/prep-edu.md) | | 4 | [ELSA Speak](https://openaitools.app/tool/elsaspeak-com) | 958,654 | -21.9% | Freemium, Free Trial | AI English speaking coach with instant pronunciation feedback | [.md](https://openaitools.app/tool/elsaspeak-com.md) | | 5 | [Alfa PTE](https://openaitools.app/tool/alfapte) | 886,734 | -15.1% | Freemium | PTE practice tests with instant AI scoring and realistic mock exams | [.md](https://openaitools.app/tool/alfapte.md) | | 6 | [Praktika](https://openaitools.app/tool/chatgpt-english-praktika-app) | 673,116 | +8.5% | Freemium, Paid | Learn a new language by talking to lifelike AI tutors | [.md](https://openaitools.app/tool/chatgpt-english-praktika-app.md) | | 7 | [Trancy](https://openaitools.app/tool/trancy) | 438,752 | -57.6% | Freemium, Free Trial | Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface. | [.md](https://openaitools.app/tool/trancy.md) | | 8 | [Gurully](https://openaitools.app/tool/gurully) | 358,166 | -4.2% | Freemium | AI-scored PTE, IELTS, DET and CELPIP mock test platform | [.md](https://openaitools.app/tool/gurully.md) | | 9 | [LanguaTalk](https://openaitools.app/tool/languatalk) | 353,853 | -20.1% | Freemium | Speak a new language from day one with human-like AI and expert human tutors | [.md](https://openaitools.app/tool/languatalk.md) | | 10 | [SmallTalk2Me](https://openaitools.app/tool/smalltalk2-me) | 282,580 | -2.4% | Freemium | AI English speaking practice with instant CEFR scoring and interview prep | [.md](https://openaitools.app/tool/smalltalk2-me.md) | --- Source: https://openaitools.app/compare/det-practice-vs-language-reactor More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)