# LumiSource

> LumiSource is an AI-powered college prep platform for high school students. It provides AP exam practice with adaptive mastery-based learning, AI college essay review, college acceptance calculators, and extracurricular activity discovery tools.

## Core Products

- [College Essay Review](https://www.lumisource.io/college-essay-review): Free college essay reviewer and editor that provides line-by-line feedback, detailed comments, and clear editing guidance on Common App personal statements and supplemental essays for the 2026-2027 admissions cycle
- [College Essay Grader](https://www.lumisource.io/college-essay-grader): Free college essay grader, checker, scorer, and rater that instantly grades your college essay using admissions-style rubrics with a clear score breakdown for Common App essays, personal statements, and supplemental essays
- [AP Exam Practice](https://www.lumisource.io/ap/all): Adaptive AP exam practice with mastery tracking across 10 AP subjects
- [College Acceptance Calculator](https://www.lumisource.io/college-acceptance-calculator): Estimate college admission chances based on GPA, test scores, and extracurriculars

## AP Subjects

LumiSource offers practice tests, study guides, and unit reviews for these AP subjects:

- [AP World History](https://www.lumisource.io/ap/world-history/practice/all): Practice questions and study guides for AP World History: Modern
- [AP US History](https://www.lumisource.io/ap/us-history/practice/all): Practice questions and study guides for AP United States History
- [AP European History](https://www.lumisource.io/ap/european-history/practice/all): Practice questions and study guides for AP European History
- [AP Human Geography](https://www.lumisource.io/ap/human-geography/practice/all): Practice questions and study guides for AP Human Geography
- [AP Biology](https://www.lumisource.io/ap/biology/practice/all): Practice questions and study guides for AP Biology
- [AP Environmental Science](https://www.lumisource.io/ap/environmental-science/practice/all): Practice questions and study guides for AP Environmental Science
- [AP US Government](https://www.lumisource.io/ap/us-government/practice/all): Practice questions and study guides for AP US Government and Politics
- [AP Psychology](https://www.lumisource.io/ap/psychology/practice/all): Practice questions and study guides for AP Psychology
- [AP Macroeconomics](https://www.lumisource.io/ap/macroeconomics/practice/all): Practice questions and study guides for AP Macroeconomics
- [AP Microeconomics](https://www.lumisource.io/ap/microeconomics/practice/all): Practice questions and study guides for AP Microeconomics

## AP Study Guides

Each subject has comprehensive unit-by-unit study guides and review pages:

- [AP World History Study Guides](https://www.lumisource.io/ap/world-history/review/all): Unit reviews and study materials for AP World History
- [AP US History Study Guides](https://www.lumisource.io/ap/us-history/review/all): Unit reviews and study materials for AP US History
- [AP European History Study Guides](https://www.lumisource.io/ap/european-history/review/all): Unit reviews and study materials for AP European History
- [AP Human Geography Study Guides](https://www.lumisource.io/ap/human-geography/review/all): Unit reviews and study materials for AP Human Geography
- [AP Biology Study Guides](https://www.lumisource.io/ap/biology/review/all): Unit reviews and study materials for AP Biology
- [AP Environmental Science Study Guides](https://www.lumisource.io/ap/environmental-science/review/all): Unit reviews and study materials for AP Environmental Science
- [AP US Government Study Guides](https://www.lumisource.io/ap/us-government/review/all): Unit reviews and study materials for AP US Government
- [AP Psychology Study Guides](https://www.lumisource.io/ap/psychology/review/all): Unit reviews and study materials for AP Psychology
- [AP Macroeconomics Study Guides](https://www.lumisource.io/ap/macroeconomics/review/all): Unit reviews and study materials for AP Macroeconomics
- [AP Microeconomics Study Guides](https://www.lumisource.io/ap/microeconomics/review/all): Unit reviews and study materials for AP Microeconomics

## Company

- [Home](https://www.lumisource.io/): LumiSource homepage
- [Pricing](https://www.lumisource.io/pricing): Plans and pricing for LumiSource
- [Contact](https://www.lumisource.io/auth/contact): Get in touch with the LumiSource team