SnapXam

You enter a math problem into SnapXam and get back a full step-by-step solution, with explanations and diagrams where they help.

SnapXam is an AI math tutor and homework helper that also covers physics, and it is available around the clock.

You can pick between several solving methods for the same problem, which is handy when a teacher expects a particular approach.

Solutions can be downloaded as PDFs, with no limit on how many.

The student plan costs $6 a month, or $40 a year, and removes ads.

Premium access also covers the iOS and Android apps.

The company says more than 1M students use it.

Teachers get a separate plan at $12.97 a month or $99.97 a year.

It adds custom math worksheets that you can generate in seconds and a database of 10 million problems to draw from.

If you mainly want worked answers to study from, the student plan is the one to look at.

If you write your own assignments, the teacher plan fits better.