どこでもワーク　英語３年 is an educational app developed by 株式会社　文理. This app is a comprehensive workbook that is fully compatible with school textbooks.

The app includes two main features: "Grammar Training," which consists of multiple-choice grammar questions, and "Vocabulary Training," which is a collection of English word flashcards.

The app offers convenient learning features such as the ability to select multiple units for study at once, a "Random" mode that changes the order of questions, a "Retry" mode that allows users to focus on incorrect answers, and a "Sticky Note" mode that enables users to study specific questions.

In the "Vocabulary Training" section, users can also listen to the pronunciation of words.

The app incorporates fun elements to keep users engaged, such as changing images based on the number of correct answers in the "Results" section and the ability to earn items by correctly answering all questions in a unit. These items can be displayed in the "Curio Room."

Please note that items can only be obtained by completing a unit in either "Sequential" or "Random" mode. Choosing multiple units, using the "Retry" mode, or studying questions with "Sticky Notes" will not yield any items. Additionally, once an item has been obtained for a unit, it cannot be earned again in subsequent attempts.

どこでもワーク　英語３年 is a free app available for Android devices with Android 4.0 and above.