ReviewNotes

PricingStart free

Your first note and 100 problems are free. Top up with credits when you need more. Once you have topped up, add as many notes and problems as you like while those credits last.

You get 100 credits for AI when you sign up. Run out, and everything you saved stays. You can still build problem sets and solve them.

What’s free

Up to 1 note and 100 problems

  • Add manuallyType a problem and its answer into your note, one at a time, no AI.
  • Problem sets and mock examsBundle problems into a set and solve it against the clock.
  • AssignmentsSet one for yourself, or solve it together with friends.
  • Review and progressRedo the ones you missed and see your study record.
  • PrintExport a set as a PDF and solve it on paper.

What uses credits

After a top-up, no limit on notes or problems while credits last

  • AI import · One problemSnap one problem you got wrong, and AI turns it into the problem, answer, and solution.
  • AI import · Extract from a documentPull every problem out of several photos or a PDF at once.
  • Answers and solutionsAI finds the answer when the book has none, then solves it step by step.
  • Study helpersAI makes concept cards and similar problems, and grades written answers.
  • Tidy upAI double-checks answers and sorts your tags.

Choose a credit pack

Questions, answered

Photos of the workbook or test pages with problems you got wrong are all you need to start. Add the answer-key pages too, and the answers are attached to each problem. No photos yet? Sign up now and upload them later. With AI (uses credits), one photo becomes one organized problem, and a stack of photos or a PDF can be extracted into many problems at once. Typing problems in yourself, one at a time, is free.