Trial is too short

I tried a few sample problems to test the app and now its already nonfunctional. It didnt let me test near enough different types of problems before it stopped. I will not purchase it without being able to fully test it. I would have been happy to pay if I had a fair chance to see if it could do the array of problems I need. I will not delete for a while in case the developer allows a better trial to ensure it will work for the user.

The emusifyer about FX Math Solver