Lockcard - Vocabulary Builder from YouTube, Articles & AI

Name: Lockcard - Vocabulary Builder from YouTube, Articles & AI
Rating: 5 (10 reviews)
Author: lockcard.app

Featured

lockcard.app · Education

Open in Chrome Web Store Website

Users

190

Avg rating

5.0

Ratings

Updated

Jul 26, 2026

Media

5 items

Description

Learn vocabulary from YouTube, articles & PDFs. Save with context, track encounters, and sync to iPhone for review. Lockcard vocabulary builder helps you learn English from real content such as YouTube videos, online articles, PDFs, and web pages. Instead of memorizing word lists, Lockcard helps you learn vocabulary in context. You can save words directly from what you read and watch, always with the original sentence and meaning preserved. This makes it easy to understand how words are actually used in real situations, not just in definitions. With Lockcard vocabulary builder, you can: * Save vocabulary from YouTube, articles, PDFs, and web pages * Capture words with full sentence context * Build a personal vocabulary list automatically * Track your vocabulary across different content * Review words with spaced repetition and lightweight reminders * Sync vocabulary to mobile for continuous learning Lockcard vocabulary builder is designed for multilingual learners who want to build real vocabulary from real input, not isolated word lists. Whether you are learning English for study, work, exams, or daily communication, Lockcard vocabulary builder helps you turn everyday content into long-term vocabulary memory.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
57
Description length
Characters in the listing description.
1236
Media assets
Screenshots and videos on the listing.
5
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
Yes
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
83.7

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.

Description

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
57
Description length
Characters in the listing description.
1236
Media assets
Screenshots and videos on the listing.
5
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
Yes
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
83.7

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.