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Stemmy - Vocabulary Wallet

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Overview

The Cognitive Overlay for the Web - Highlight any word for instant AI-powered definitions

Stemmy is a vocabulary builder that turns any webpage into a classroom. Highlight any word for an instant definition with etymology, pronunciation, and examples — then save it to your personal wallet and master it with spaced repetition. ✨ Key Features for Rapid Vocabulary Growth šŸ“– Instant Definitions: Highlight any word for a floating "Ghost Card" overlay with definition, pronunciation, synonyms, antonyms, and etymology. (Ctrl+E) 🧬 Word DNA: Explore root morphemes, origin languages, and related word families for deeper understanding. šŸ‘› Vocabulary Wallet: One-click save to a searchable, sortable wallet, organized by mastery level. 🧠 Spaced Repetition (SM-2): Optimize long-term retention with a scientifically proven review algorithm. šŸ” Encounter Tracking: Passive reinforcement by detecting your saved words on any webpage you browse. šŸ“š AI Stories: Generate context-rich short stories using your saved vocabulary for engaging learning. ⚔ X-Ray Mode: Instantly scan and highlight complex vocabulary on any page for quick review. šŸ“Š Dashboard: Track progress, streaks, and manage your word cards with detailed analytics. šŸ¤– Telegram Bot Integration: Extend your learning beyond the browser. Look up words and review your vocabulary directly from Telegram. While Ghost Card is a universal tool for anybody looking to expand their linguistic horizons, it is particularly effective for: šŸŽ“ Test Prep: Master high-level vocabulary for the GRE, SAT, TOEFL, and IELTS. šŸŒ Language Learners: Perfect for ESL/EFL students seeking rapid English acquisition. āœļø Professionals: Ideal for researchers, writers, and avid readers looking to sharpen their lexicon. šŸ’ø Free & Flexible: Get 10 AI lookups free. For unlimited access, simply add your own Mistral API key. šŸ›”ļø 100% Private: Your data stays yours. All information is stored locally in your browser; there is no data collection, sharing, or transmission.

Details

  • Version
    1.1.1
  • Updated
    May 17, 2026
  • Size
    1.23MiB
  • Languages
    English
  • Developer
    Email
    vasimkk000@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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Stemmy - Vocabulary Wallet has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Stemmy - Vocabulary Wallet handles the following:

Authentication information
Personal communications
Web history
User activity
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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