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Upload your notes, slides, or textbook chapters and Topic Learner reads them, finds the concepts that matter, and builds quizzes, flashcards, and focused practice, grounded entirely in what you gave it.
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4.2 Subnetting
A subnet mask separates an IP address into a network part and a host part. With a /24 mask, the first 24 bits identify the network, which leaves 8 bits for hosts. That gives 256 addresses, of which 254 can be assigned, because the first is the network address and the last is the broadcast address. Routers forward packets between subnets, while switches forward frames inside one.
From the marked sentence
How many hosts can you assign in a /24 subnet?
Pick an answer to see where it comes from
How it works
Three steps between "I have a pile of course material" and "I actually know this."
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Upload your material
PDFs, Word docs, slide decks, plain text, even photos of handwritten notes.
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We map what matters
Topic Learner reads the content, pulls out the key concepts, and builds a model of what you need to know.
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Practice, not just review
Get quizzes, flashcards, and dialogs generated on demand, scoped to exactly what you uploaded.
Re-reading your notes feels like studying. It mostly isn’t.
The material you already have is the fastest path to actually knowing it, you just need it turned into something you can be tested on. Topic Learner does that conversion for you, so the time you spend studying is time spent practicing, not re-skimming.
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Active recall
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Spaced repetition
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Zero busywork
Five ways to turn one document into real practice
Every exercise below is generated from what you uploaded, not a generic question bank.
Ask questions, grounded in your material
No open-ended chat with the whole internet. Every dialog is scoped to the document you uploaded, so answers stay on-topic and honest about what it doesn't know.
Freshly generated questions, not a static bank
Every regeneration pulls new questions from your material, so you can't just memorize the answer key.
Checking out a commit hash instead of a branch leaves your repo in which state?
Spaced repetition, built from your own definitions
Flashcards are pulled straight from the terms in your document. The ones you struggle with resurface more often.
Fill in the blank, pulled straight from your notes
A real sentence from your material with a key term removed. Pick the right word from close alternatives.
The CAP theorem states a distributed system can guarantee at most two of consistency, availability, and
Broader checks that push past one-word recall
Longer, denser questions with several plausible options, built for testing understanding, not keyword matching.
Why do distributed databases favor eventual consistency in high-partition scenarios?
Why not just paste your notes into a chatbot?
You can. Plenty of people do. Here’s what changes when the tool is actually built for studying instead of general conversation.
A general-purpose AI chatbot
- Will confidently make things up when it doesn’t know the answer
- Has no idea what’s actually in your course material unless you paste it in every time
- One more tab to juggle alongside your notes, your quizzes, your flashcards
Topic Learner
- Answers are constrained to the document you uploaded, no invented facts
- Your material stays loaded as context for every dialog, quiz, and card
- One place to upload, practice, and track what you actually know
Coming from Quizlet? See how Topic Learner compares.
Simple, credit-based pricing
One monthly pool of credits for every exercise type. Start free, change plans anytime.
Free
Try Topic Learner on one course.
$0 / month
- 1 active topic
- 25 credits / month
- All exercise types
- No card required
Plus
RecommendedFor a full course load, all semester.
$7.99 / month
or $24.99 per semester (4 months)
- 5 active topics
- 200 credits / month
- Credit top-ups when you need more
- Email support
Pro
Heavy use across many topics at once.
$14.99 / month
or $44.99 per semester (4 months)
- 15 active topics
- 400 credits / month
- Credit top-ups when you need more
- Priority support
- Early access to new exercise types
What a credit buys
Spend credits on any exercise type. Unused credits reset each month.
- Quiz 1 credit
- Flashcard set 1 credit
- Gap text (soon) 1 credit
- Multiple-choice set (soon) 1 credit
- AI dialog message 2 credits
| Feature | Free | Plus | Pro |
|---|---|---|---|
| Active topics | 1 | 5 | 15 |
| Credits / month | 25 | 200 | 400 |
| Credit top-ups | - | 100 for $3.99 | 100 for $3.99 |
| Support | - | Priority |
Stop re-reading. Start practicing.
Upload what you're already studying and let Topic Learner turn it into quizzes, flashcards, and focused practice in minutes.
Get startedFrequently asked questions
Yes, the free plan includes 1 active topic and 25 credits a month, with no card required. Upgrade only if you need more topics or credits.
Credits are what you spend to generate practice. Quiz: 1 credit, Flashcard set: 1 credit, Gap text: 1 credit, Multiple-choice set: 1 credit, AI dialog message: 2 credits. Your credits refill every month, and on paid plans you can top up 100 more for $3.99.
From your account settings, anytime, in a couple of clicks. There’s no cancellation fee and no need to contact support.
Yes, upgrade or downgrade whenever you want. Upgrades apply immediately and you’re only charged the difference for the current period.
Not yet. Topic Learner currently works great in a mobile browser, and a dedicated app is something we’ll prioritize based on demand.