Most ai study tools answer from the open web. StudyPDF answers from your own material. You upload your course once, and Bo reads every lecture, slide deck, and reading. From then on you just ask. Bo replies with a citation like Lecture 4, p. 12, so you can check the source instead of trusting a guess.
Every day planned to your exam.
Built from your lectures.
Upload your lectures, name the exam date, and Bo plans every day until then.Upload your lectures and tell Bo when the exam is. You get a plan for every day until then, weakest topics first, and each session builds its own flashcards, quiz, practice exam or study guide in one click.
130,000+ students · since 2024
Every page, read
Nobody rereads every slide. Bo does.
Slides, PDFs, lecture videos, even scans and photos. Upload all of it. Bo reads every page, breaks your course into the topics and concepts you have to learn, and answers with the page it came from.
What's the difference between mitosis and meiosis?
Mitosis makes two identical cells. Meiosis makes four, each with half the chromosomes.
Trusted by students at top universities
How it works
From upload to answer in four steps.
Upload your course
Lectures, a chapter, a photo of the whiteboard. It all goes in.
Bo reads every page
It learns your material and how the ideas connect.
Bo connects your course
It links topics and concepts across every lecture and chapter you add.
Ask it anything
Get a cited answer in seconds, or make a study set with New material.
biochem-lecture-4.pdf
24 pages
Reviewing your lectures4 files in course
Lecture 2 · Krebs cycle ↔ Chapter 4 · enzymes
You asked
Explain the Krebs cycle.
The second stage of cellular respiration, where acetyl-CoA is oxidized to release energy.Lecture 4, p. 12
Know where you stand
Stop studying what you already know.
Bo maps every concept in your course, then runs a short placement check so it knows where you stand. From there, every quiz, flashcard deck and daily review targets your gaps, and you watch your readiness climb.
Your course6 files
Cell Biology
Every concept mapped, checked and tracked
Made for your gaps
Building from your gaps
Practice exam12 questions · graded
Photosynthesis
Q3 · Which pigment absorbs the most red light?
Chlorophyll a
Beta-carotene
Xanthophyll
Cited · Lecture 5, p.3Auto-graded
Ask Bo for 20 hard flashcards, press Create, and watch card 7 of 20 appear, live. The deck opens when it is done.
Why StudyPDF
Why not ChatGPT or NotebookLM?
They answer the question you ask, then forget you. Bo knows which concepts you have not learned yet and keeps working on them with you until you are ready.
Getting exam-readyStudyPDFAI chat
Maps every topic and concept in your course
Checks where you stand before you start
Builds quizzes and flashcards around your gaps
A daily review of what is slipping
Sees the exact card or question you are stuck on
Shows how ready you are for the exam
It plans
Every day, planned to the exam.
Tell Bo when the exam is and it lays out a session for every day until then, weak topics first, with the material for each one.
This week6 sessions · 4h per day
- Talk throughKrebs cycle48'
- FlashcardsATP synthesis48'
- QuizGlycolysis48'
One Bo
Upload once. Ask for anything.
Ask in plain words. Bo answers from your course, and when you want a study tool it hands you a ready-filled New material form. It sees which card or question you are on, so when you get one wrong, a plain why? is enough.
What you can make
“Make me a mock exam on photosynthesis.”
Practice exam
Photosynthesis
15 questions · about 12 min
“Turn chapter 4 into flashcards.”
Flashcards
Chapter 4: Cell biology
32 cards · all cited
Plus mind maps, summaries, and cheat sheets. Bo fills in the form, you press Create.
It remembers
It remembers your course, over the weeks.
Bo tracks every concept across your lectures. Scores fade as you master them, so what you struggled with recently rises to the top. Every quiz, exam, and flashcard feeds back in. Ask what should I focus on and Bo points to your weakest concepts and sets up the next drill.
Your progressCell Biology
0%
The more you study, the sharper it gets.
Quiz answers feed mastery. Mastery drives what comes next.
Energy metabolism
- Krebs cyclestrong
- ATP synthesisStudy next
- Glycolysissolid
Cell division
- Mitosisstrong
- Meiosissolid
NewImage Occlusion
Every labeled diagram, masked for recall.
Bo finds the diagrams in your own lectures and covers every label, then exports to Anki's native Image Occlusion. No drawing boxes by hand.
Hover to revealTap to reveal
4.8from 130,000+ students
Students don't just use it. Then they tell their friends.
“Thank you sm for this amazing website, really let go of my tension for my upcoming tests and exams”
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“Just got an account today because I was falling behind in my intermediate accounting class. Already love whats going on here, this is exactly the type of software I have been internally begging for.”
“Thats such a great idea, great to see a company that puts thought and care into a product.”
“Sorry for wasting your time. I am 80yrs of age and helping my granddaughter who has ADHD!”
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“love the website btw”
“this is great”
“Thank you sm for this amazing website, really let go of my tension for my upcoming tests and exams”
“LOVE THIS WEBSITE SMMM, thank you guys for saving my exams, i cant thank you enough. Gonna recommend this website to soo many others too!!”
“Just got an account today because I was falling behind in my intermediate accounting class. Already love whats going on here, this is exactly the type of software I have been internally begging for.”
“Thats such a great idea, great to see a company that puts thought and care into a product.”
“Sorry for wasting your time. I am 80yrs of age and helping my granddaughter who has ADHD!”
“Anyways, studypdf is really good, thanks”
“love the website btw”
“this is great”
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Pricing
Start free. Pay when you need more.
Free needs no card and has no time limit, with about 4 materials a week. Pro and Ultra give you more materials, more courses and larger uploads. Every plan has a weekly cap, so there are no surprise bills.
A study set is one flashcard deck, quiz, exam, study guide or mind map. No surprise bills.
Free
Everyday Bo studying
$0.00
Free forever
- Study plan
- About 4 study sets a week
- Flashcards, summaries, mind maps, exams
- No card required
Most popular
Pro
Heavy daily Bo use
…
- Study plan included
- About 35 study sets a week
- Bo remembers what you keep getting wrong
Ultra
All-out Bo use
…
- Study plan included
- About 105 study sets a week
- Room for cram weeks
- Bo remembers what you keep getting wrong
iPhone & Android
The StudyPDF app is here.
Flashcards, exams and Bo in your pocket, built from your own lectures. Even offline.
Free to download. iPhone, iPad and Android.
Scan to install
Point your phone camera at the code.
Start studying.
Upload your course and ask Bo anything. Free to start, no card required.
Why StudyPDF
AI study tools that actually know your course
StudyPDF makes whatever you need to study. Turn your PDF or lecture into flashcards, and the key terms come straight from your notes. Make practice exams, and the questions are written in the style your professor actually tests. Go from pdf to mind map when you want to see how ideas connect, or use it as an ai study guide generator when you need a clear walkthrough of a topic. Bo can set up any of them for you.
Everything stays grounded in what you uploaded. When a summary or a cheat sheet is made, it draws only from your course, then points back to the page it came from. There is no made-up content and no generic textbook filler. The answer is your material, organized for the exam in front of you.
Bo remembers your whole course over time. It knows which topics you have covered, which ones you keep getting wrong, and where the lectures left gaps. That longitudinal memory is what turns a pile of PDFs into one study companion you can keep asking, week after week, all the way to the final.
FAQ
Questions, answered.
No. Bo only pulls from the lectures and notes you upload. Every answer includes a citation to the page it used, so you can open the source and verify in one tap. If your material does not cover the question, Bo tells you instead of inventing an answer.
PDFs, slide decks, scanned notes, photos of a whiteboard, YouTube lectures, and web pages. Upload a single chapter or your whole course. Bo reads scans and handwriting with vision, and video citations jump to the exact second in the player.
Yes. Press New material, pick Practice exam or Study guide, choose your sources and options, and create it. It is made from your uploads, with citations. Or tell Bo, for example 'a 20-question exam on chapter 3,' and Bo opens the form already filled in. You can open and edit the result.
Yes. The StudyPDF apps for iPhone, iPad and Android are live, and it runs in your browser too. It is the same account everywhere, so your courses stay in sync. Open Bo between classes to ask about the lecture you just left, or review flashcards on the way to the library.
For many students, yes. Free needs no card and has no time limit. You can upload your course, ask Bo, and make about 4 materials a week across 2 courses. Upgrade to Pro or Ultra when you need more materials a week, more courses, or larger uploads.
ChatGPT answers from the whole internet. Bo answers only from your course. That means fewer generic textbook answers and fewer made-up details. You get cited pages, memory of what you are weak on, and study tools built from the same material.
Yes. Bo tracks what you have practiced, what you got right, and what is slipping. It can nudge you to refresh weak spots and picks up where you left off next week or next semester, as long as the course is in your account.