I've already left apple for this sole reason. I have now realised how much better android is, although it is extremely insecure, as one bad apk downloaded means all your wallet passwords would be stolen and used. Thats why I don't keep any more than 0.01 on my phone wallet at any time. I use xapo.com's vault for long-term storage.
It sounds a lot like you are making the argument to stay with apple. If android phones are insecure then why use them? Your BTC is only one of many things that could get stolen if an attacker were to gain access to your phone (sensitive information on your phone like text messages, banking information, pictures, your geo-location, potentially your identity).