Grammaticus is the study aid specifically for Wheelock’s Latin, 7th Edition, currently available for Android devices. The app follows the text chapter by chapter, helping you to practice the grammatical forms for the model words, as well as all of the vocabulary. Macrons are required, and macron entry is extremely simple: just hold down the vowel key, or enter a capital letter. Grammaticus also has a handy glossary of the entire Wheelock’s vocabulary.