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✅ Quiz result
Biology: 92%
↑ +27% from last week
🃏 Flashcard streak
14-day streak 🔥
42 cards reviewed today
📅 Study plan
Exam in 12 days
On track · 3 topics left
🧠 Feynman check
Gap found: Mitosis
AI feedback ready →
Free · students who want to study smarter already studying smarter

Stop re-reading.
Start actually learning.

J
A
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★★★★★
Built for focused study sessions
Designed for active learning
Quiz · Biology
AI Quizzes
AI-generated from your notes with instant feedback on every answer.
4 correct Review 1
Learn more
Flashcards · Physics
Smart Flashcards
Spaced repetition — review at the perfect moment before you forget.
✓ 22
? 6
✗ 4
12 due today Learn more
Feynman · Biology
Feynman Technique
Explain a concept in your own words — AI finds every gap you missed.
2 gaps found
Learn more
Summary · History
Summary & Chat
AI summary of your notes — then ask follow-up questions in chat.
You: Why did it start?
AI: Economic crisis & inequality…
Learn more
Study Plan · Exam
AI Study Plan
Day-by-day schedule that adapts as you learn — until exam day.
65% on track · 14 days left
Today: Organic reactions · 30 min
Learn more
No credit card    Free forever plan    Cancel anytime
Getting Started

From notes to exam-ready
in under 60 seconds.

Four steps. That's all. No setup, no configuration, no manual card-making.

1
📁

Upload your notes

PDF, Word, PowerPoint, or just paste your text. Any format. Any subject. Done in seconds.

2

AI builds your study set

Flashcards, quizzes, summaries and a personal study plan — all generated automatically from your material.

3
🎯

Study with purpose

Work through quizzes and flashcards. Get instant AI feedback. The system focuses you on your weakest areas.

4
📈

Watch your grades rise

Track your mastery score. See knowledge gaps close. Walk into your exam knowing you're ready.

No credit card needed to start
Works for any subject
First study set ready in <60 seconds
Built for students who want to study smarter
Every tool you need

One upload. All your study tools.

No more switching between five apps. Everything lives in one place, all connected to your notes.

AI Quiz Generator

Multiple choice, short answer & essay questions — generated from your own notes. With instant AI grading and feedback on every answer.

Free plan2 quizzes / month
Premium Unlimited

Smart Flashcards

AI-generated flashcards with built-in spaced repetition. Mark cards Know / Unsure / Don't Know — reviewed at exactly the right time.

Free plan2 sets / month
Premium Unlimited

Feynman Technique

Explain any concept — Revaldo AI instantly shows you exactly what you misunderstood or missed. Deep understanding, not just memorisation.

Free plan2 / month
Premium Unlimited

AI Study Plans

Enter your exam date. AI builds a day-by-day schedule combining quizzes, flashcard reviews and Feynman sessions — adapting as you improve.

Free planNot included
Premium Unlimited

AI Study Chatbot

Stuck on a topic? Chat directly in your study set. The chatbot knows your notes and can generate a new quiz or flashcard deck on the spot.

Free planLimited
Premium Extended

Progress Analytics

See your mastery score, knowledge gaps, best study times and improvement week over week. Know exactly where to focus next.

Free planBasic
PremiumAdvanced insights
One PDF. Everything generated.

See what Revaldo AI builds
from a single upload.

Upload one PDF, paste your notes, or snap a photo — and Revaldo AI instantly creates every study tool below. No setup. No clicks. Just learn.

Biology Ch.4 — Cell Division

Uploaded 2 min ago · 12 pages · AI study set generated

AI Quizzes

Multiple choice, short answer & essay — all auto-generated with instant AI grading.

Smart Flashcards

32 cards created with spaced repetition — review before you forget.

Feynman Technique

Explain concepts — AI finds every gap in your understanding.

AI Summary

Clean, structured summary of your entire document in seconds.

Study Chat

Ask questions, request explanations, or generate more content from chat.

Study Plan

AI builds a day-by-day schedule that adapts as you learn.

All generated in under 30 seconds from your upload
Try it free — upload your first PDF →

↓ Scroll down to see each tool in detail

What is the primary function of mitochondria in a cell?
A
Protein synthesis
B
ATP energy production
C
DNA replication
D
Cell division
AI Quiz — Multiple Choice

Instant feedback that actually explains why you got it wrong.

Not just a red ✗. Revaldo AI tells you exactly what you missed and why the correct answer is correct — so you learn from every mistake in real time.

AI generates realistic multiple choice questions from your own notes
Instant grading with detailed explanations per answer
Weak areas automatically flagged for your study plan
Try AI Quizzes free →
Short answer · Question 3 of 8
What happens during the S phase of the cell cycle?
DNA is replicated so each chromosome has two chromatids
Short answer · Question 4 of 8
Name two differences between mitosis and meiosis.
Type your answer here…
AI Quiz — Short Answer

Write your answer. AI grades it like a teacher would.

Short answer questions force you to recall from memory — the strongest way to learn. AI checks your answer against the source material and gives specific feedback.

Open-ended questions that test true understanding, not just recognition
AI compares your answer to the source and scores accuracy
Missing details highlighted — so you know exactly what to review
Try Short Answer Quizzes →
Long answer · Essay question
Explain how natural selection leads to evolution. Use specific examples.
Natural selection is the process by which organisms with traits better suited to their environment are more likely to survive and reproduce. For example, in peppered moths during the Industrial Revolution, darker moths survived better against soot-covered trees, leading to an increase in dark-colored moths over time. Over many generations, these advantageous traits accumulate in a population, driving evolutionary change.
8/10
Strong answer — two areas to improve Good use of the peppered moth example. Consider also mentioning genetic variation as a prerequisite and reproductive isolation as a factor in speciation.
AI Quiz — Long Answer

Essay-level practice with instant AI grading.

No more waiting days for a teacher to mark your work. Write full paragraphs and get scored immediately — with specific suggestions on what to add or improve.

Essay & paragraph questions generated from your uploaded material
AI scores on accuracy, completeness and structure
Specific improvement tips — not just a grade, but how to get a higher one
Try Essay Quizzes free →
Flashcard — Chemistry
"Explain Le Chatelier's Principle in your own words."
Tap to reveal answer
124 Know ✓
18 Unsure 🤔
14 Don't know ✗
Next review: 14 cards due tomorrow · 42 cards in 7 days
Smart Flashcards

Remember more by studying less — with spaced repetition.

Revaldo AI generates your flashcards automatically from any notes or PDF — then schedules reviews at exactly the right time. You only see a card right before you'd forget it.

Cards auto-generated from your uploaded material — no manual creation
Science-backed spaced repetition — review at the optimal interval
Know / Unsure / Don't Know — focus time on what matters most
Try AI Flashcards free →
Step 1
Choose a concept
Photosynthesis
Step 2
Explain it in your own words
Plants take in sunlight and CO₂ and turn it into food. The chlorophyll captures light energy, then the plant uses water to make glucose. Oxygen is released as a byproduct.
Step 3 — Results
AI Analysis
Great job!
You correctly identified the key inputs (sunlight, CO₂) and outputs (glucose, oxygen). Your explanation is clear and simple.
Areas for improvement
  • You didn't mention where light reactions happen (thylakoid membranes) vs Calvin cycle (stroma)
  • The role of water splitting in producing oxygen was missing
Missing points
  • ATP and NADPH as energy carriers
  • The difference between light-dependent and light-independent reactions
See AI example explanation
Quiz me on this
Feynman Technique

If you can't explain it simply, you don't truly understand it.

Pick any concept. Write your explanation in plain language. Revaldo AI instantly analyses what you got right, what you missed, and what's incomplete — then shows you a model answer.

3 steps: choose topic → write explanation → get instant AI feedback
Positive feedback + knowledge gaps + missing points — all colour-coded
See a model AI explanation and jump straight into a quiz on your weak areas
Try Feynman Technique free →
AI Study Chat — Biology Ch.4
Knows your notes · Can generate quizzes & flashcards
Summarise this chapter in 5 bullet points
Here's your summary:
• Cells are the basic unit of life — all organisms are made of cells
• DNA replication occurs during S phase of the cell cycle
• Mitosis produces 2 identical daughter cells
• Meiosis produces 4 genetically unique gametes
• Cell specialisation allows different functions in multicellular organisms
Generate 5 flashcards on mitosis
Done! I've created a deck of 5 flashcards on mitosis from your notes.
5 flashcards generated →
Quiz me on cell division — short answer
Starting a 5-question short answer quiz on cell division now.
Quiz started →
Ask anything about your notes…
Summary & AI Chat

Your notes, summarised. Then chat to go deeper.

Revaldo AI creates a clean summary of your uploaded material. Then ask follow-up questions, request explanations, or tell the chat to generate flashcards and quizzes — all from the same conversation.

Instant AI summary of any uploaded notes, PDF or document
Ask any question — the chatbot knows your entire source material
Generate flashcards, quizzes or explanations directly from the chat
Try AI Chat free →
Biology Finals — Study Plan
14 days · Target: A · Adapts daily
This week
M
T
W
T
F
S
S
Today's session
Cell Structure — 30 min
🃏 Flashcards first · then 🧠 Feynman check
Overall progress 65%
AI Study Plans

A personal study plan that adapts as you learn.

Tell Revaldo AI your exam date. It builds a day-by-day schedule tailored to your weak areas, available hours and the tools that work best for each topic.

AI calculates exactly what to study today, tomorrow and every day until your exam
Recommends the right tool (quiz / flashcard / Feynman) for each topic
Adapts in real time — if you struggle somewhere, it automatically reschedules
Get my study plan →
73%

of students re-read the same pages hoping something sticks — even though science has known for decades it's one of the least effective ways to study. You're not the problem. Your method is.

Hours lost, nothing retained

Re-reading feels productive — but without active recall, your brain discards most of it within 24 hours. You need to be tested on the material, not just exposed to it.

No feedback until it's too late

You submit and wait days for a grade. By then you've moved on. Revaldo AI gives you instant, specific feedback on every single answer — while the concept is still fresh.

No idea what to study next

You sit down to study and spend 20 minutes just deciding where to start. Revaldo AI tells you exactly what to study, with which tool, and for how long — every single day.

Real students, real results

They stopped re-reading.
Their grades proved it.

students who want to study smarter have already made the switch. Here's what happened.

★★★★★

I was spending 4 hours a night on biology and still failing tests. With Revaldo AI, I upload my notes, run through the flashcards and quiz myself. I went from a D to a B+ in six weeks.

J
Jessica, 17
A-level Biology
D → B+ in 6 weeks
★★★★★

The study plan feature is insane. I just put in my exam dates and it tells me exactly what to revise each day. I don't have to think about it — I just open the app and start. Saved me hours of stress.

A
Alex, 20
University Engineering
3+ hours saved per week
★★★★★

The Feynman technique with AI feedback blew my mind. I thought I understood quantum mechanics. The AI showed me exactly three things I had completely wrong. Would never have found that re-reading.

M
Marcus, 22
Physics Major
Identified 3 hidden knowledge gaps
★★★★★

As a pre-med student I have an insane amount to memorise. Revaldo AI turned my entire textbook into flashcards in under a minute. The spaced repetition means I actually keep the information — not just for the exam.

S
Sofia, 21
Pre-Med
800+ flashcards from one textbook
★★★★★

I have ADHD and planning study sessions has always been impossible. The AI study plan takes that decision fatigue completely away. I just follow it. My consistency went from 2 days a week to every single day.

E
Emma, 19
Sixth Form
2 days/week → every day
★★★★★

Started on the free plan during finals. Upgraded after day three because the results were immediate. The quiz explanations alone are worth it — my professor couldn't explain organic chemistry as clearly as the AI feedback does.

L
Liam, 23
Chemistry MSc
Free → Premium after 3 days
Science
backed learning methods
Focus
on what to study next
All-in-one
complete study workflow
30s
to generate your first set
How we compare

The only tool that does it all.

Feature
Revaldo AI
Quizlet
Anki
AI-generated flashcards from PDF
AI quiz generation from notes
Instant AI feedback on answers
Spaced repetition
Paid
AI-personalised study plan
Feynman Technique with AI feedback
Free to start
Simple pricing

Free to start.
Upgrade when you're ready.

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forever
Everything you need to see if Revaldo AI actually works for you — no commitment, no card.
2 quizzes per month
2 flashcard sets per month
2 Feynman sessions per month
Unlimited short-answer Qs
1 study set max
Basic progress tracking
AI study plans
Advanced analytics
Start for free
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Schools & Groups
Custom
volume pricing
Everything in Premium, plus classroom tools and teacher dashboards for schools and universities.
Everything in Premium
Teacher dashboard
Classroom management
Group progress tracking
Assignment creation
Dedicated support
Custom integrations
Contact sales
For schools, universities & companies
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FAQ

Questions? We've got answers.

The Feynman Technique is a 4-step method developed by Nobel Prize physicist Richard Feynman: pick a concept, explain it simply, identify gaps, refine until it's crystal clear. Revaldo AI automates the feedback step — you write your explanation and the AI instantly tells you what you got wrong, what you missed, and suggests a clearer way to explain it.
The free plan is genuinely useful — 2 quizzes, 2 flashcard sets and 2 Feynman sessions per month. Most students try it for a week and immediately see a difference. Premium removes all limits, adds AI study plans and gives you advanced analytics. If you're preparing for a serious exam, Premium pays for itself in the first study session.
PDF, Word (.doc, .docx), PowerPoint (.ppt, .pptx), plain text, and images with text (.jpg, .png). You can also paste text directly. The AI reads and analyses everything to generate quizzes, flashcards, summaries and study plans — automatically.
ChatGPT is a general chatbot — you have to prompt it for every quiz, specify the format, track your own progress and rebuild the conversation every time. Revaldo AI is purpose-built for studying: it generates quizzes and flashcards from your uploads automatically, implements spaced repetition, gives structured Feynman feedback, builds personalised study plans, and tracks your performance over time — without any manual prompting.
For most students, yes. Quizlet requires you to create cards manually and charges for most AI features. Anki has powerful spaced repetition but a steep learning curve and no AI generation. Revaldo AI combines automatic AI generation (like Quizlet's paid tier) with proper spaced repetition (like Anki), plus quizzes, Feynman feedback and study plans — all in one free-to-start platform.
Absolutely. Cancel anytime with one click — no questions asked, no hoops to jump through. If you cancel, your premium access stays active until the end of your current billing period. Note: if you lock in the $4/month sale price and cancel, you lose the discounted rate.
Every subject, every level. Biology, Chemistry, Physics, Medicine & MCAT, History, Economics, Law, Mathematics, Language Learning, Computer Science, Engineering — if you have notes or a textbook, Revaldo AI can build your study tools. The AI adapts to the content, not the other way around.

Your next exam could be
the one you're finally proud of.

Stop spending hours studying the hard way. Build a smarter study system in 30 seconds. Free to start, no card needed.

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