Useful app for learning German capitalization and spelling rules
This app contains a number of exercises for learning German capitalization, spelling, and punctuation rules. After each question, the applicable rule is explained, in German. On the whole, using the app is enjoyable, and it covers a range of common issues.
Unfortunately, the app is marred by two careless errors. In one place, the answer is given for a different problem from the one just completed. In another, two of the answer choices are the same.
This app could also benefit from improvement in two areas. First of all, it could have more questions illustrating each case, so that you don't get the same exact questions each time you do the quiz. Secondly, it would be nice if selecting an answer automatically deselected the previously-selected answer, instead of leaving both answers selected.