QuizSolver

QuizSolver has a free plan that gives you 10 answers a month, which is enough to test it before paying.

It is an AI homework helper delivered as a browser extension that gives instant answers and explanations for quiz questions.

Paid plans are named Quiz Pass, Quiz Wiz and Quiz Master.

Quiz Pass costs $5.42 a month on yearly billing ($64.99 a year) and covers 120 answers a month with email support.

Quiz Wiz costs $8.00 a month on yearly billing ($95.99 a year) and raises the limit to 800 answers, adding bonus surprises and earlier access to new features than free users get.

Quiz Master costs $18.75 a month on yearly billing ($224.99 a year) and removes the cap with unlimited answers, chat-based priority support and early access to everything new.

The free tier has no support, so you are on your own there.

Heavy users will hit the monthly limits quickly on the lower plans.