1. Why take away google translate as you had ın other apps? That noth enough, also cannot be copied... It makes the app of little use if I cannot look up meaning of words quickly (copying allows reverso, dict.cc work from clipboard.) I buy your apps but like this, it is zero useThe very first exercise has an error in the grammar.
2. This is supposed to be a learning tool.Great,helps you to solve after the lecture is over.its an additional practice.not suitable.
3. The effort to collect the material is great but the material must be correct.