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The library of AP notes built for your best score.

Notes for every topic of 25 AP courses, written by students who sat the exams themselves, and Dove, an AI study partner that turns any page into practice. Read the notes, drill the questions, and walk in knowing your score.

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01 · Learn

Notes that read like a friend explaining it

Notes for every topic, written by students who took the class, and your place saved in every course. Free for everyone, with cram sheets for every unit in Pro.

Every topic, in plain English
Notes follow the College Board framework topic by topic. Mark what you've read and your progress follows you.
Unit 3: Cellular Energetics
AP Biology · notes · 5 pages
4 of 5 read
3.3Environmental Impacts on Enzyme Function
3.4Cellular Energy
3.5Photosynthesis
63.6Cellular RespirationReading
From 3.6
The electron transport chain pumps protons across the inner membrane. That gradient is what spins ATP synthase.
The whole unit on two pages
Cram sheets for every unit of every course keep only what the exam asks, for the night before.
Unit 3 cram sheet18 key terms
Glycolysis
cytoplasm · 2 ATP
Krebs cycle
matrix · NADH, FADH₂
ETC
inner membrane · proton gradient
Chemiosmosis
H⁺ through ATP synthase
2 pages · printableDownload PDF
Pick up where you left off
Every course you take keeps your place, so one tap gets you back to the next page.
AP Biology
3.6 Cellular Respiration
AP United States History
5.3 The Compromise of 1850
AP Psychology
2.3 Introduction to Memory
Your courses, one shelf
Add your AP classes and see how far through each one you are, with bookmarks sorted by course.
Your courses
AP Biology
18 of 53
AP US History
40 of 87
AP Psychology
12 of 37
Bookmarks
AP Biology
3.6 Cellular Respiration
3.5 Photosynthesis
AP US History
5.3 The Compromise of 1850
02 · Practice with Dove

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Question 2 of 3 · 3.6 Cellular Respiration
A poison blocks the final electron acceptor in the ETC. What stops first?
AGlycolysis in the cytoplasm
The proton gradient, then ATP synthesis
CThe light-dependent reactions
Correct
With nothing to accept electrons, the chain stops pumping protons, so the gradient that drives ATP synthase fades.
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TermChemiosmosisTap to flip
4 / 10
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The electron transport chain pumps protons across the inner membrane. That gradient is what spins ATP synthase.

That gradient is what spins ATP synthase.
Why does a gradient make ATP?
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DoveAI3.6 Cellular Respiration
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03 · Score

Know where you stand before May

Free score calculators for every AP exam and a countdown to yours. Full-length practice exams are coming to Pro.

Your AP score from your points
Score calculators for every AP exam, with the official section weights and this year's estimated cut scores.
4
Predicted AP score
AP Biology
Multiple choice44 / 60
Free response22 / 34
Total 69 of 100. A 5 takes about 72: two more free response points get you there.
See where your score falls
Last year's official score distribution, with your predicted score marked on it.
You
1
8%
2
21%
3
31%
4
25%
5
15%
A 4 beats about 60% of last year's AP Biology scores.
A countdown to your exam
Every course page counts down to its AP Exam, in your own time zone.
AP Exam
Monday, May 3, 2027
12 p.m. your local time
183
days
04
hours
17
minutes
52
seconds
Full-length practice exams
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Q 42 of 60
31:12
A poison blocks the final electron acceptor in the ETC. What stops first?
AGlycolysis in the cytoplasm
BThe proton gradient, then ATP synthesis
CLight-dependent reactions
Back Flag questionNext
AP Biology Practice Exam 2 · Section I · multiple choice

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“My biggest problem was remembering what happened in each time period. The notes were organized exactly how we learned it in class so reviewing was pretty easy. I got a 4.”
Ryan T.AP World History · Sophomore · Illinois

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01

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Most AP notes online are scattered across sites, decks, and videos, so you spend half your time hunting. Dove's Library puts every unit of a course in one place.

02

Quality over quantity

Crowd-sourced sites pile up thousands of uploads, and the quality is a gamble. Ours are written by students who scored a 5 on the exam, so they know exactly what you need to know, and nothing you don't.

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05

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Frequently Asked Questions

Find answers to common questions about Dove's Library

A free library of AP notes, organized unit by unit like the College Board course frameworks, with your reading progress and bookmarks saved in every course, plus AP score calculators. Pro adds Dove, an AI study partner that turns any page into practice questions and flashcards, and cram sheets for every unit. Full-length AP practice exams are on the way.
Yes. Every AP note is free, with no credit card. Pro, for $30 a month, adds Dove on every note, cram sheets for every course, and the full SAT, and AP practice exams join it as they launch. See pricing →
Students who took the class and sat the AP exam. They write from what the exam actually asked them, and every guide is checked against the College Board course framework.
25 courses across history, social sciences, math, computer science, and science. 25 are live today and the rest are on the way. Browse the library →
Our AI study partner, part of Pro. Open it beside any note and it has already read the page: ask it to explain something simply, quiz you with practice questions you answer right there, make flashcards, or highlight a line and ask about just that. Each page keeps its own chat. Dove can make mistakes, so check what matters against the notes.
They are on the way. Each one will follow the real exam format, with the same sections, timing, and question styles, plus a scoring rubric for every free response. They are written by us, not released College Board exams, and they join Pro as they launch. Until then, Dove can write practice questions on any page.
Enter the points you expect on each section. It weights them the way the College Board does and compares the total with estimated cut scores for a 1 to 5. Cut scores change every year, so treat the result as an estimate. Try the calculator →
No, use it alongside your class and textbook. The notes are made for review: each unit comes down to what the exam tests, so they work best once you have covered the material in class.
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