You will need to root it. It’s running a very custom android. There is a good documentation about it. Look for DPTTools. But if you want a epaper tablet with the play store (and certified) look at the BOOX ones (note, air or Lumi). You can install the play store and download the official kindle app. Some says that BOOX has questionable GPL practices and does some api call in China (might be just telemetry), check in this forum for opinions:).