Try the following steps
Step 1. Download the Android.zip to your Phone or PC
Step 2. Unpack the .zip file to open the .apk file
Step 3. If not alreay, put the apk files on your phone
Step 4. Install the apk on your phone (give permission to your phone to install from unknown sources beforehand)
Step 5. Launch the Game
I just tested this on a spare Android Device of mine and everything worked out.
Alternative Option
Install the itch io App on your device
Search for NTR Phone
Download through the App and try to unzip the file and install it