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School · College · Test prep

Find the right course before you sign up.

Choose a school grade, a College year, or an exam. Each path shows the courses and practice currently available.

School: 33 courses for Grades 4–12

Grade 4 Mathematics and four core subjects for Grades 5–12: Mathematics, English Language Arts, Science and Social Studies. Free for up to three parent-managed learners, with parent consent and private progress. No payment method required.

Lessons and checked practice accompany writing, investigations and other work reviewed by a parent. These supplemental courses use New Jersey standards; YoUni’s sequence within state grade bands is its own allocation.

Choose your school grade · Family sign-in

Seven free foundational College paths across Years 1–2

Reviewed course

Reviewed Calculus I covers limits, derivatives, integrals and applications through lessons, worked examples and free PDF study material. Interactive checked practice and placement are temporarily unavailable.

Read the Calculus I guide

Six beta previews

Calculus II, Physics I, General Chemistry I, Programming for Engineers, Statics and Probability and Statistics for Engineers. Their available lessons and practice are free; the courses are still being developed and have not received the complete academic review of Calculus I.

Later years

College Years 3–4 and broader degree paths are future plans, not available year programs. A book or catalog listing does not mean a complete course is offered.

Year 1: Calculus I; Calculus II; Physics I; General Chemistry I; Programming for Engineers.

Year 2: Statics; Probability and Statistics for Engineers.

Current College paths by year and availability
YearCourseAvailability
1Calculus IReviewed content; checked practice temporarily unavailable
1Calculus IIBeta preview
1Physics IBeta preview
1General Chemistry IBeta preview
1Programming for EngineersBeta preview
2StaticsBeta preview
2Probability and Statistics for EngineersBeta preview
3–4No released coursesPlanned

Explore College by year

Test prep: SAT, GED, ACT and AP previews

Browse the available subjects and sample practice. AP Calculus AB and BC include specialized diagnostics, practice and mock-exam tools. The broader AP subject catalog contains previews.

New High School accounts receive a separate 30-day trial under current terms. Standard subscriptions are $29 per month or $290 per year. Introductory offers depend on account eligibility; check the introductory and renewal terms together. A subscription covers currently available features and does not guarantee unfinished content.

SAT Math guide · SAT Reading and Writing guide · AP Calculus AB/BC guide

Current test-prep tools and previews
ExamSubjectsWhat is available
SATMath; Reading and WritingTwo preview paths with dedicated practice tools; not a complete reviewed prep program
GEDLanguage Arts, Mathematical Reasoning, Science, Social StudiesFour catalog and reading previews
ACTComposite strategyOne catalog and reading preview
AP40 subject entries, including Calculus AB and BCAB/BC have dedicated practice tools; the broader subject catalog remains previews

Books and the app

Read free study books without an account. A book does not establish that the associated course is complete. Youni.You is available for iPhone and iPad; course availability can differ by app version. Android visitors can use the website.

YoUni is an independent learning platform and does not award accredited degrees or school credit, or guarantee grades or exam scores.

Background reading and planned paths

The Algebra I topic guide points into Grade 9 Mathematics; the separate older High School Algebra I entry remains a preview. The engineering starter roadmap combines current foundations with future plans. Neither guide establishes a complete school or degree program.

Academic integrity and original work · About the official iPhone and iPad app