The fact that the 200 million speakers of Brazilian Portuguese far outnumber speakers of other variants of Portuguese has escaped the producers of this app. This app is of little help to those interested in Brazilian Portuguese, particularly the "verbs" section. Tu (you) is seldom used in Brazil, yet the equivalent "você" is missing (verb tenses are not the same for both). At least specify that this is oriented toward Portuguese of Portugal so potential buyers can make an informed choice.
Toollio about Ultralingua Portuguese-English, v2.7