Every point goes back to the second it was said
Tap any AI key point or argument to jump to the transcript line, then to the exact second in the recording. If you doubt the AI, the evidence is one tap away.
AI learning OS for university students
Record the lecture.
Review only what you don't know yet.
NotebookLM understands your materials. AiClass understands how you learn: the materials, the professor, you, and a whole semester of progress.
iOS · Android · macOS
🔑 Full AI features (cloud transcription, AI key points, question bank, AI assistant) require connecting ChatGPT or another AI provider's API key.
🎙️ Live transcription (speech to text) works offline and needs no AI.
Evidence chainPrinciples of Economics · Week 6
Key point
A price ceiling below equilibrium causes a shortage.
Transcript42:09–42:31
“…so if the government caps rent below where supply meets demand, more people want apartments than there are apartments. That gap is the shortage, and this one will be on the exam.”
Original audio42:17 / 1:48:05
Why AiClass
The professor says “this will be on the exam”. It goes into your question bank.
While organizing each lecture, AiClass finds the parts the professor stressed, like “this is important” or “this will be on the exam”, turns them into key points and quiz questions, and links each one to the second it was said.
It learns where you are weak
AiClass keeps track of what you know and what you don't. Spaced review is weighted by your mistakes, so questions you miss keep coming back and limited study time goes where it counts.
Turn a key point into a diagram
One tap and AI draws a diagram for a key point, like the supply and demand curves behind a price ceiling. Concepts that are hard to picture from words become easy to review at a glance.
Ask the AI assistant anytime
Still unsure? Call up the AI assistant from any screen and send the organized key points to ChatGPT with one tap. Ask follow-up questions, get a simpler explanation or more examples, all with the lecture's context already included.
How it works
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Before class
Add the course
Enter the course name, and optionally the professor and syllabus. One tap gives you a preview of what to expect.
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In class
Record
Recording and a live transcript run together, even offline. Drop a bookmark whenever something sounds important.
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After class
Organize
Cloud transcription and text correction turn the recording into an accurate transcript. Then one tap pulls out the key points and turns what the professor stressed into a question bank.
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Before the exam
Review
Quizzes and spaced review are weighted by your mistakes. Concepts you missed come back until they stick.
Inside the app
Real screens from the macOS version.
How AiClass is different
| Typical AI notes / NotebookLM | AiClass | |
|---|---|---|
| Understands | Your materials | Materials, professor, you and your learning history |
| Where a point comes from | Hard to trace | Plays back the original recording at the exact second |
| Organized by | Single documents | Whole course, with key points and questions building up lecture by lecture |
| Review | Generic summaries | Targets your weak spots |
| Where data lives | Cloud | Recordings and transcripts stay on your device first |
Your recordings stay with you
Recordings, transcripts and your learning model are stored on your own device and kept for as long as you want. Share a recording or save a copy wherever you like. AI processing only runs after you tap the button and agree.
AiClass vs N**ta
Pay less. Get way more.
Already have ChatGPT? AiClass gives you the study features lectures actually need, for US$29.99 a year. N**ta Pro is US$97.99 a year.
| N**ta Pro | AiClass | |
|---|---|---|
| Yearly price | US$97.99 billed yearly (50% education discount available) | US$29.99 per year; lifetime early-bird US$89.99, paid once |
| Try before you buy | Free plan: up to 3 minutes per recording | 7-day free trial with every feature |
| Exam questions from what the professor stressed | Not listed in plans | Built automatically, each one plays back the exact second |
| Review that targets your weak spots | Not listed in plans | Tracks what you miss and brings it back with spaced review |
| Key points as diagrams | Not listed in plans | One tap turns a key point into a diagram |
N**ta prices and features are from N**ta's official pricing page, checked on 23 Oct 2026, and may change. AiClass AI features run on your own ChatGPT subscription (Plus or higher recommended), which is not included in the AiClass price. N**ta is a trademark of its owner; AiClass is not affiliated with N**ta.
Pricing
Every plan includes all features. Try everything free for 7 days.
No paying twice for AI: AiClass works with the ChatGPT subscription you already have.
Monthly
US$4.99
for 1 month
No auto-renewal
Buy with PayPal
Semester
US$19.99
for 6 months
One semester
Buy with PayPal
Yearly
US$29.99
for 12 months
Half the monthly price
Buy with PayPal
Lifetime
US$89.99US$119
one-time payment
Early-bird price for the first 500 buyers
Buy with PayPal
Recording, offline live transcript, cloud transcription with text correction, AI key points, AI diagrams, automatic question bank, weak-spot review, AI assistant
Each purchase activates up to 2 devices, for example your phone and your Mac.
Monthly, semester and yearly plans don't renew automatically. Buy again anytime and the time is added on top.
AI features run on your own AI account and are not included in the price. We recommend connecting a ChatGPT subscription (Plus or higher): no API key, no extra per-use fees.
Questions
Which platforms are supported?
iOS, Android and macOS. Each purchase activates up to 2 devices, for example your phone and your Mac.
How do I activate after buying?
Sign in or create an account on this website and pay with PayPal. Then sign in to the app with the same email and your plan is active.
How does AiClass decide what's important?
When the professor says things like “this is important” or “this will be on the exam”, AiClass picks that part out as a key point and adds it to your question bank, linked to the exact second in the recording.
Does it work offline?
Yes. Recording and the live transcript both work without internet, using the system's built-in speech recognition or a Whisper model you download once. The live transcript is a quick draft; after class, cloud transcription with text correction produces the accurate version, and that step and the AI features need a connection.
Can I get a refund?
Yes. You can request a full refund within 7 days of purchase. Email admin@esim168.com.
Do the AI features cost extra?
AiClass does not include AI usage. Cloud transcription and AI features run on an AI account you connect. We recommend signing in with your ChatGPT subscription, which uses your plan's included usage, so you don't need an API key or pay per request. You can also connect your own API key, which the AI provider bills separately.
How long are recordings kept? Can I share them?
Recordings are kept on your device for as long as you want. You can share a recording with classmates or save a copy to another folder or storage service at any time.