This app enables students to input math equations and receive understandable step-by-step solutions. There is no feature to save past problems for review.

Build an app that lets students input math equations to see step-by-step solutions.
Add a feature to save past problems for review.

Q: How should the step-by-step solutions be displayed?
A: understandable

Q: How should students access and review their saved problems?
A: no need to save