So its also not safe?
Discussion
it cannot be used with hardware wallet. You should still use it. You can connect to it wtih a hardware wallet third party app like sparrowwallet.com
I am happy to help you get a hardware wallet.
Does it work on Android?
yes but you need alot of storage, approx 1TB on a dedicated device.
not a good idea to put it on your daily phone, i will reduce the life of it.
its better to run it on a PC and connect to it from a mobile wallet that supports connecting to your own node like electrum wallet or Sentinel by Samourai for Android. Ideally Sparrow Wallet on PC.