Terms of Service

Not affiliated with any competition

Astro Coach is not affiliated with, endorsed by, or connected to USAAAO, IAAC, IOAA, IAO, Science Olympiad, BAAO, or any other competition organization. Competition names are used only to describe where a question came from.

Questions, sources, and attribution

Practice questions are transcribed from publicly available competition papers and solutions. Every question records its competition, year, round, question number, and a link to the original source, shown on the question page.

Rights in the original material remain with whoever holds them. If you own material used here and want it changed or removed, email the address below and it will be taken down promptly. See the About page for more on where questions come from.

Accuracy is not guaranteed

Questions, answers, explanations, and figures are transcribed and may contain mistakes. Astro Coach is a study aid, not an authoritative source. Always check the original competition paper before relying on anything here, and never treat a result on this site as an official one.

Astro Coach Pro

• Pro is a monthly subscription, billed through Stripe. The price is shown before you pay. A founding price stays the same for as long as that subscription stays active.
• You can cancel any time from your dashboard. Pro then continues until the end of the month you already paid for, and you are not charged again. Partial months are not refunded.
• Pro includes 50 AI grades each billing month. Unused monthly grades do not carry over.
• Extra grading credits are a one-time purchase. They do not expire and stay on your account if you cancel Pro.
• Deleting your account cancels Pro immediately, without a refund for the rest of the month, and removes any unused credits.
• Billing problems or questions: email the address below.

AI grading

Free-response answers are graded by an AI model against the competition's marking scheme. It can make mistakes. Grades and feedback are for practice only and are never an official result.

Your account

• Give accurate information when you sign up, and keep your login secure.
• One account per person. Do not share an account.
• Do not attempt to break, overload, scrape, or gain unauthorized access to the site or other users' data.
• Do not use the content to build a competing commercial product.
• You can delete your account at any time from Profile Settings. Accounts that break these terms may be removed.

Availability and changes

Astro Coach is offered as-is, with no guarantee of uptime, and it is under active development. Features, questions, and these terms may change, and the site may be unavailable at times. To the extent the law allows, the project and its maintainer are not liable for any loss arising from use of the site, including lost progress or competition outcomes.