LearnSphere icon

LearnSphere

by gargravish83 · Education
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

AI-Powered PDF Learning Assistant with Chat, Summary, and Quiz Generation

Users
15
−6 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
7
0 in 30 days
Store rank
#165K
#138K among extensions
Version
1.2.0
updated 25 Aug 2025

Users

monthly, 14 months
0132265Aug 2025Apr 2026Oct 2026
Latest, 16 Oct 2026: 15 usersMove the mouse over the chart for any month

Ratings count

monthly, 14 months
047Aug 2025Apr 2026Oct 2026
Latest, 16 Oct 2026: 7 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About LearnSphere

### Full description LearnSphere is an AI‑powered study assistant that lives in your browser. Highlight any text on the web (or in a PDF opened in Chrome) to: - Chat for deeper explanations - Generate clean, scannable summaries - Create interactive quizzes with answers and explanations - Track your learning with a dashboard, knowledge gap analysis, and revision plans All processing uses your own Google Gemini API key. Your data (quiz history, analytics, preferences) is stored locally in the browser. #### What you can do - Chat about selected text: ask “explain this,” “compare with…,” or “give examples.” - One‑click summaries: get headings, key points, and takeaways in Markdown‑style formatting. - Interactive quizzes: multiple‑choice questions with correct/incorrect feedback and explanations; save results. - Knowledge tab: weak pages and frequent weak terms computed from quiz history. - Dashboard: attempts, average score, last attempt, recent scores chart, top weak pages, and top chat topics. - Export: copy or export quiz results (CSV) from the options page. #### How it works - Right‑click selected text and choose: Chat, Generate Summary, or Create Quiz. - Or click the extension icon to open the LearnSphere sidebar. - Configure your Gemini API key once in the popup or options page. Get a key from [Google AI Studio](https://aistudio.google.com). #### Privacy & data - Bring‑your‑own‑key: your Google Gemini API key is stored in Chrome storage. - Data is local‑first: quiz results, topics, and analytics are saved in IndexedDB on your device. - Only the text you ask the AI about is sent to Gemini. No background scraping or selling of data. - Permissions explained: - activeTab: run on the page you’re viewing when you use the extension - storage: save settings and local data - contextMenus: right‑click actions - scripting: inject the sidebar UI on demand #### Highlights - Works on most websites and PDFs opened in Chrome - Clean, responsive sidebar UI - Helpful error messages, offline indicator, and retry logic - No sign‑in required; you control your API key and data #### Support Questions or feedback? Open the options page → Knowledge or Privacy & Data to review/export your data, or use the extension popup to check status and settings.

Growth

WindowUsersChangeRatingsRating
7 days−6−28.6%00.00
30 days−6−28.6%00.00
6 months−2−11.8%00.00
1 year−263−94.6%00.00

Version history

3 versions recorded
1.2.025 Aug 2025
1.1.022 Aug 2025
1.0.019 Aug 2025

Details

Category
Education
First seen
19 Aug 2025
Size
761 KB
Languages
en
Pricing
Free
Privacy policy
gist.github.com
Extension ID
nbiiocdocbbogchhnmadohejgloonpcb

Permissions and risk

Minimal riskimpact 0, likelihood 2
Permissions
activeTabstoragecontextMenusscripting

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