• https://github.com/Nightbringer21/fridump
• https://www.frida.re/docs/android/

pip install frida
git clone https://github.com/Nightbringer21/fridump.git    
python fridump.py -h

Download Android server

• https://github.com/frida/frida/releases

adb push frida-server-12.4.8-android-x86_64 /data/local/frida-server
adb shell chmod +x /data/local/frida-server
adb shell /data/local/frida-server

Then you can use the script to dump the App you want

python fridump.py -U -s com.xxxx.android