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DejaVocab - 得记单词 icon

DejaVocab Chrome Extension Analysis

AI & Writing Assistants

Store listing title: DejaVocab - 得记单词

Chrome extension ID: fgoacfcjfdnjgiamkgphccmhcieibmgh

A productivity extension for English learners that integrates directly with YouTube and general web browsing. It features a distraction-free video player, bilingual subtitle generation, instant word lookups, and an AI sidebar for text manipulation.

Version:1.4.3
Size:1.15MiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

2K+

Rating

★ 5.0

6 reviews

Languages

1 locales

Includes English

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

AI & Writing Assistants

Pricing friction

Low review signal

Complaint intensity

Low review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

DejaVocab positions itself as an immersive language learning ecosystem that builds a 'language intuition network.' It focuses on converting passive video consumption on YouTube into active study through bilingual subtitles and AI-powered web assistance.

Inferred product pattern

An AI-enhanced language acquisition tool that bridges content consumption with vocabulary management and spaced repetition.

Review-backed pain points

Manually collecting and organizing new vocabulary from video content is described as time-consuming and difficult.

Observed feature gaps

No explicit mention of social/collaborative learning features in the listing.

Tags
Language LearningAI SidebarYouTube LearningVocabulary Builder
Target users

- English language learners

- YouTube content consumers

- Students using spaced repetition systems like Anki

Primary use cases

- Immersive video-based language learning

- Vocabulary building via web browsing

- AI-assisted reading and summarization

Positive themes

- Seamless synchronization between subtitles and video

- Efficient workflow for creating study cards

- Active developer engagement in updates

Negative themes

No negative theme data.

Observed friction

- The product uses a freemium model where core features are free, but higher AI usage quotas and semantic search capabilities require Ultra or Lifetime plans.

Evidence boundary: Extracted from Chrome Web Store listing and four highly positive reviews emphasizing the ease of syncing subtitles and exporting to study tools. The review sample size is very small (5 reviews) and lacks low-rating samples to identify common complaints.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

No support complaints observed.

Reliability

No reliability or performance complaints observed.

Privacy

No privacy complaints observed; the listing claims data is only processed upon explicit user action.

Access & pricing

- Free entry with paid features

- Login needed for core features

- Limited free usage observed

Store listing facts

Listing assets

- Screenshots: 2

- Videos: 0

- Languages: 1

Trust signals

- Privacy policy

- Developer contact

- Official website

Store metadata

- Version: 1.4.3

- Size: 1.15MiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

learn English on YouTubebilingual subtitlesAI language assistantvocabulary builderEnglish subtitle extension

Comparison

AnkiLanguage Reactor

Problem

tedious vocabulary note-takingdifficulty understanding English videos

Alternative

dual subtitlesEnglish learning tool

Similar extensions

Jump to related discovery paths:

More in education

Screenshots

DejaVocab - 得记单词 screenshot
DejaVocab - 得记单词 screenshot

Links

Website: dejavocab.com

Privacy policy: https://dejavocab.com/privacy-policy/

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