APKPure Appを使用する
API 571 Practice and Examsの旧いバージョンをダウンロードすることが可能
This is a mobile app that help people to practice prior to taking real Exams
This Free version only has several practices and exams questions to show you the general view of the app. The full Exams version includes more than 800 questions that cover the whole sections of API 571 Examination