First thanks for making your app available freely! But I wonder about a few things:
Why does it want to install other apps (
REQUEST_INSTALL_PACKAGES)? What for does the app need network permissions? By the description, it's a note taking app being available from the notification area. No indication for networking requirements. Looking at the dependencies (included libraries):
* Google Mobile Services (/com/google/android/gms): NonFreeDep
* Firebase (/com/google/firebase): NonFreeNet,NonFreeDep
Well, that seems to explain why network permissions are required – but for me just shifts the question to: what does a note taking app need Firebase for, and GMS?
A last question concerns the missing license. Are you intending to make your app available as free/libre open source software (aka F/LOSS)? If so, did you already choose a license (and just forgot to add it) – or do you need some suggestions (in the latter case: should it rather be "permissive", or "copyleft"?
Thanks in advance for answering!