四谷大塚講座受講 is an Android application developed by 株式会社四谷大塚出版. It is a player application designed specifically for individuals who have applied for the course at Yotsuya Otsuka. The application allows users to access and view course videos on their Android devices.

Please note that this application is exclusively for individuals who have already applied for the course at Yotsuya Otsuka. Those who have not applied for the course will only be able to view sample videos.

The application is compatible with Android 4.4 or later devices. It has been tested and confirmed to work properly on various models including HTC J butterfly, Nexus9, GALAXY S5, Xperia XZs, Nexus 6P, HUAWEI MediaPad M5, GALAXY S10, and Google Pixel 5. However, it is important to note that the application may not function properly on other models, and any issues encountered on unsupported devices are not covered by the warranty.