Tutoring tools are useful when they help a learner understand the process rather than only deliver an answer. The right tool depends on the subject, learner level and the kind of practice that builds confidence.
Use one learning objective and a related follow-up problem. Check whether the learner can explain the method independently after using the assistance.
Photomath helps users explore mathematics through problem recognition and explanations. It is useful for understanding a worked process, with the greatest learning value coming from trying a related problem afterward.
Work through the explanation one step at a time. Close it and solve a similar problem yourself to check whether the method makes sense.
Khanmigo is Khan Academy's AI-supported learning and teaching service. It is useful for guided educational work where the process of understanding a question matters as much as arriving at an answer.
Bring one learning objective or lesson task. Use the assistance to develop explanations and practice, then check that the learner can apply the idea independently.
Bring the same example to each tool you compare. Keep the original input and the edits you make to the result, so you can see where each option helps. Check the exported output in the next step of your work, rather than judging only the preview inside the application.
Before choosing a plan, check the product website for current access, usage limits and supported integrations. A useful shortlist matches the task you need to finish and the way you will reuse the result.