Add to ChromeUnderstand the steps
Ask for an explanation of the question on your screen. Work through the reasoning and ask follow-up questions where you get stuck.
Free AI homework & study help
Make sense of your homework.
Open your course page, add your notes, and ask Retriever to explain the steps. Work through a difficult question with the material you’re already studying.
Free Mode. AI included. No API key. How it works
See it workrtrvr.aiExample workflow
Your request
“Explain why (2x² + 3)/(x² + 1) approaches 2 as x grows. Give me a similar question to try.”
Work through the steps
| Step | Reasoning |
|---|---|
| Divide by x² | (2 + 3/x²)/(1 + 1/x²) |
| Let x grow | 3/x² and 1/x² approach 0 |
| Find the limit | 2/1 = 2 |
See Retriever at work
See Retriever beside a practice question.
A creator’s 45-second walkthrough shows the Chrome extension running alongside Khan Academy practice material.
Study with Retriever in Chrome.
A walkthrough by @gerretugc, shared with permission.
Watch on TikTokStudy in your browser
Explore study notes and source links
A little help, right where you’re studying.
Keep the question and your course material open. Ask Retriever to explain the idea, break down a step, or help check your working.
Explore study notes and source linksTry it with the task on your list.
In good company
Trusted by 35,000+ builders, GTM teams, and founders.
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How it helps
Less tab switching. More understanding.
Bring your notes together
Turn course pages and reading links into organized notes with sources you can revisit. Use your own material as context.
Practice what you learned
Ask for a similar question, try it yourself, and get help checking your working. Find the step that needs another look.
Your first task
Start with one of these.
Copy a request into the extension, or open it in Cloud. Make it yours before you run it.
Help me understand this question
Help me understand this practice question using my course notes. Explain the reasoning one step at a time, ask me to try the next step, and help me check my working. Do not submit anything for me.
Turn reading into study notes
Use these course pages and reading links to create study notes. Explain the key ideas, include the source links, and give me five practice questions. Keep the answers separate so I can test myself first.
Start free
Start in Chrome or Cloud.
Sign in with Google or email. Choose Free Mode and tell Retriever what you need.
$0Ad-supported Free Mode
with supported AI included.
with supported AI included.
Free usage has fair-use limits. Subscriptions add schedules and ad-free runs. See what’s included.
Use the pages already open in Chrome.
Install the extension, click Retriever AI in your toolbar, and sign in. It works with the sites you’re already signed into.
Or start in Cloud, without installing.
Sign in to rtrvr and describe your task. Cloud gives you a separate browser. You may need to sign in to the websites your task uses.
Common questions
Can I use my course pages and notes?
Yes. In Chrome, open the material you can access and attach your notes or select the relevant tabs. Ask Retriever to explain, summarize, or help you practice from that context.
Can I ask for a different explanation?
Yes. Point to the step you’re stuck on and ask Retriever to explain it another way, use an example, or give you a similar practice question. Keep asking until the reasoning makes sense.
Go fetch
Put Retriever to work. For free.
Get a little help with the next difficult question.Free Mode includes supported AI. See what’s included.