study.com 的前十大競爭對手

khanacademy.org

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

sparknotes.com

SparkNotes are the most helpful study guides around to literature, math, science, and more. Find sample tests, essay help, and translations of Shakespeare.

britannica.com

Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.

sophia.org

Sophia Learning’s Anatomy and Physiology I course will give students an introduction to the human body.

litcharts.com

from the creators of sparknotes, something better. understand more, faster. free!

fiveable.me

Study guides with what you need to know for your class on Honors US Government. Ace your next test.

mometrix.com

Mometrix Academy will prepare you for any test, exam, or certification with our free practice tests, top study tips, and helpful hints to avoid test anxiety.

byjus.com

byju's comprehensive e-learning programs for k3, k10, k12, neet, jee, upsc & bank exams from india's best teachers. join today to fall in love with learning

vedantu.com

Join Vedantu live online classes for K12, CBSE, ICSE, JEE & NEET courses led by experienced master teachers and prepare for your exam more effectively. Enroll Now.