Even though ProProfs is an interesting tool, it has the following limitations:

1. This is a paid tool, even though it has a 2 weeks trial. After the trial expires, the user has to select a pricing scheme.
2. If a quiz with points is created, the points are distributed automatically between the questions, i.e. the user cannot set the number of points each question gives;
3. When creating questions in a quiz, the user can select different languages, however the number of languages is limited.