AI-powered · Study smarter

You don't need more time.
You need a better system.

Kora reads your course material, builds your study plan, tests your understanding, and keeps you on track — whether you're a full-time student or fitting study around a busy life.

No credit card required

Kora
You have 65 minutes. Activation Functions is queued — pages 47 to 61. Let's go.
Tonight's tasks
Lecture 4.2 notes reviewdone
Activation Functions — pp. 47-6130 min
Start session →

Sound familiar?

You have the material.
No idea where to start.

You downloaded the PDFs, you have the textbooks. But staring at 300 pages with no structure isn't studying. It's avoiding.

You keep waiting for
the right moment.

The perfect free afternoon never comes. And when it does, you don't know what to do with it. So you don't start.

You read it.
You didn't retain it.

Reading through notes and slides feels productive. But without testing yourself, very little actually sticks.

Exam season hits
and you're not ready.

No practice papers. No idea which topics will come up. No system. Just panic and an all-nighter that barely helps.

Kora solves all four.

How it works

Three steps to actually finishing your degree.

Upload your course material

Drop in your course PDF or textbook. Kora reads it, identifies every topic, and breaks it into 25-30 minute study chunks — automatically. No manual setup.

Neural Networks.pdf

247 pages · uploaded just now

Analysis complete
  • Introduction to Neural Networks · 25 min
  • Perceptrons & Linear Models · 30 min
  • Backpropagation · 35 min
  • + 19 more sessions

Kora builds around your schedule

Tell Kora when you're free to study — whether that's evenings after work, free periods between lectures, or weekend mornings. She builds a realistic plan that fits your actual life.

This week

Mon
30m
Tue
30m
Wed
rest
Thu
30m
Fri
Sat
90m
Sun
90m

5h 30m scheduled this week

On track · finish Mar 2027

Get access to the latest study tools

Study cards, worked examples, cheat sheets, practice exams, and proven methods like Feynman — generated from your own course material so every tool matches what you actually need to learn.

Study tools
From your course

Study cards

42 cards ready

Feynman technique

Explain it simply

Cheat sheets

1-page summaries

Practice exams

From your material

Everything you need

One app. Your entire study system.

Everything a private tutor, study planner, and exam coach would give you — at the price of a coffee a month.

Smart planning

Upload your course.
Get a complete study plan.

Drop in your PDF textbook or course guide. Kora reads every page, identifies all the topics, and breaks your material into focused study sessions — with chapter references, estimated times, and the optimal learning order. No more staring at a 400-page textbook wondering where to begin.

  • Works with PDF, DOCX, and plain text
  • ISBN lookup for physical textbooks
  • 25-45 minute sessions — always completable
  • Automatically scheduled around your calendar

Neural Networks

22 study sessions · 8.5 hours

Introduction to perceptrons

pp. 12–28

25 min

Backpropagation fundamentals

pp. 29–51

30 min

Activation functions

pp. 52–68

25 min

6 of 22 complete

Active recall

Flashcards generated
from your actual content.

Kora reads your course material and generates flashcards from the concepts that matter — not generic questions, but cards built from your exact syllabus. Flip, rate your confidence, and Kora brings back the hard ones until they stick.

  • Auto-generated from your uploaded PDF
  • Rate each card: Easy, Okay, Hard
  • Hard cards resurface in future sessions
  • Study mode with keyboard shortcuts
Activation functions

What is the vanishing gradient problem and which activations help?

Tap to reveal

HardOkayEasy
Exam preparation

Practice exams that match
your actual exam format.

Upload a past paper and Kora studies it — the section structure, question style, mark allocation, and language. Then she generates a brand new practice exam in the exact same format, drawn from your course content. The closest thing to sitting the real exam before you actually have to.

  • Replicates your university's exam format
  • Questions drawn from your course material
  • Full mark scheme revealed when you're done
  • Multiple difficulty levels

Practice Exam — Neural Networks

Section A: Multiple Choice [40 marks]

1. Which activation function is most prone to the vanishing gradient problem?

  • A. ReLU
  • B. Sigmoid
  • C. Leaky ReLU
  • D. Softmax

2. In backpropagation, the gradient of the loss with respect to…

Visual learning

See how every concept
connects to the next.

Kora maps your course into an interactive knowledge tree — showing which concepts depend on which, and where you still have gaps. Track your progress node by node and always know what to study next.

  • Auto-generated from your uploaded material
  • Concept dependencies mapped visually
  • Track mastered, in-progress, and locked nodes
  • Jump straight to study cards for any topic

Neural Networks — Knowledge Tree

Perceptrons

2

Backpropagation

3

Activation functions

4

Loss functions

3 of 12 concepts mastered

Exam-ready reference

One-page summaries
from your course material.

Generate compact cheat sheets from any uploaded resource — key formulas, definitions, and common pitfalls pulled from your actual syllabus. Print them, review them before the exam, or keep them open while you study.

  • Generated from your coursebook or notes
  • Formulas, terms, and pitfalls in one view
  • Print-friendly layout
  • Regenerate anytime your material changes

Neural Networks — Cheat Sheet

Key formulas

σ(x) = 1 / (1 + e⁻ˣ)

ReLU(x) = max(0, x)

Must-know terms

Backprop · Gradient descent · Epoch

Common pitfalls

Vanishing gradients with sigmoid activations

All your files

Every course file
in one place.

Upload coursebooks, past papers, lecture slides, and notes — all organised by type inside each module. Kora analyses every file and uses it to power your study plan, cards, and exams.

  • Course books, exams, notes, and general resources
  • PDF and DOCX support
  • Each file analysed and summarised by Kora
  • Drag-and-drop upload

Module resources

Coursebook.pdf

Course book

12.4 MB

Past Paper 2024.pdf

Exam

1.2 MB

Lecture 3 notes.docx

Notes

340 KB
Smart notes

Write, record, or let Kora
summarise for you.

Keep all your module notes in one place. Write them yourself, import them from lectures, or ask Kora to summarise a stack of raw notes into something you can actually revise from.

  • Manual notes with rich text editing
  • AI summaries from multiple notes at once
  • Lecture transcripts saved automatically
  • Link notes to specific study chunks

Backpropagation summary

AI summary

The chain rule is applied at each layer to compute gradients. Each weight update depends on the error signal propagated backwards…

12 Mar 2026

Lecture 4 — Activation functions

From lecture

ReLU avoids vanishing gradients but can cause dead neurons…

Never miss a thing

Turn your lectures into
structured notes automatically.

Open Kora during your lecture and tap record. Kora transcribes everything in real time — then when you stop, she automatically summarises the key points, defines the important concepts, and highlights what's worth studying further. One tap. Complete lecture notes.

  • Real-time transcription — works offline
  • AI summary with key concepts extracted
  • Save summary to your module notes
  • Convert key concepts to study cards
00:34:12

…the key distinction between supervised and unsupervised learning is whether labelled data is available during training…

…gradient descent iteratively…

Key points from this lecture

  • Supervised learning requires labelled training data
  • Backpropagation computes gradients layer by layer
  • Learning rate affects convergence speed
Proven techniques

Study smarter with
research-backed methods.

Kora includes a library of proven study techniques — Feynman, memory palace, blurting, Pomodoro, and more. Each method is guided step-by-step and connected to your actual module content.

  • Feynman technique with AI follow-up questions
  • Memory palace builder from your concepts
  • Blurting sessions with gap analysis
  • Worked examples, mnemonics, and Cornell notes

Feynman technique

15–30 min

Memory palace

30–45 min

Blurting

15–25 min

Pomodoro

25 min cycles

Always with you

Ask Kora anything.

Every time you open Kora, she greets you by name, checks your progress, and tells you exactly what to study. She knows your modules, your schedule, your weak points, and your finish date. Ask her to reschedule your week, explain a concept from your notes, or tell you honestly if you're on track. She answers from the context of your actual course — not the internet.

Voice briefings

Kora speaks your daily briefing every time you open the app.

Ask anything

Questions about your course, your plan, or your progress — answered instantly.

Finish date forecast

See exactly when you'll finish and watch it update as you study more.

Value

Less than a coffee a month.

Compare what you get.

 The old wayGeneric toolsKora Student
Study plan from your materialManual — hours of setupBasic to-do lists
From your PDF
Comprehension testingTutor — £40-80/hrSome have quizzes
After every section
Practice exam generationBuy past papersRarely
Matches your format
Lecture transcriptionManual notesPaid add-on
Real-time + summary
AI tutor available 24/7Tutor — £40-80/hrGeneric AI chat
Knows your course
Finish date trackingGuessBasic progress bar
Live forecast
Study card generationMake them yourselfManual or basic
Auto-generated
Cost per month£200+/month$8-34/month$12/month

From $4.99/week · $12/month · $99/year. Cancel anytime.

Pricing

Simple, honest pricing.

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  • 1 module
  • 10 Ask Kora/month
  • Basic study plan
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StudentMost popular
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$19/month

$12/month

You save $7 every month

Study tools

  • Unlimited modulesAll your courses in one place
  • AI study cardsAuto-generated from your PDFs
  • Practice examsMatches your real exam format
  • Knowledge trees + cheat sheets

AI features

  • Ask Kora — 200 messages/monthAnswers from your own material
  • Lecture listener + summary
  • Full stats dashboard
Get started — $12/month

Why Kora exists

Built by a student, for students

I'm studying for a BSc in Applied AI at IU International while working full-time. Self-paced sounded perfect. In practice, it meant constantly waiting for a free afternoon that never came.

But talking to other students, I realised the problem wasn't unique to people with day jobs. Full-time students told me the same story — too much material, no system, no way to know if they actually understood it or just read it. The tools available were either too simple (to-do lists) or too expensive (tutors).

So I built Kora — the study system I wished existed. It reads your actual course material, tests your understanding as you go, generates practice exams in your university's format, and keeps an honest record of where you stand. Not a planner. Not a chatbot. An advisor that knows your course.

Founder, Kora

Common questions

PDF, DOCX, and plain text files. You can also enter an ISBN and Kora will look up your textbook automatically using Google Books. Physical textbooks work too — scan them with your phone camera using Adobe Scan or Microsoft Lens (both free) and upload the PDF.

Your course material.Your study plan.Actually ready for your exam.

Free to start. No credit card. Cancel any time.

Works with any PDF · Free forever plan · Cancel any time