The Изучение немецкого языка app from EasyLearn is a free offline German phrasebook for tourists, students, and language enthusiasts. The app has three sections, including a phrasebook, grammar, and audio lessons. The phrasebook contains the most important and common German words and phrases for various topics, such as simple phrases, introductions, language, at the airport and on the plane, hotels, and in the city, among others.

The app is incredibly efficient, fast, and with good performance. It features search filters, including prefix and suffix search options, and a dark theme. Users can also listen to the pronunciation of the phrases and add words to their favorites list. The app is 100% free and does not require an internet connection, making it an excellent tool for language learners on the go.