iOS is more secure than Android btw. If you want Android with better security get the new Blackberry Priv running Android thats been out recently.
Breadwallet ceo:
RVC: I've read that mobile wallets should only be used for pocket change. How much money can I safely keep on my phone at one time?
It's ironic, because many people don't realize that their smartphones are actually the most secure computing device they own, far more secure than desktop or laptop systems. It's wallets that can be accessed from the web or desktop that should really only be used for pocket change.
An iPhone uses the same techniques of app sandboxing and enforced code signatures that dedicated hardware wallets use. The phone is also hardware encrypted so your funds are strongly protected even if it's physically stolen. The US DOJ even complains publicly that the phones are too secure. Some people prefer to keep large amounts in paper wallets, but for someone who doesn't have a strong technical knowledge of bitcoin, misunderstanding how change addresses work can result in total loss, so they're not really suitable for the general public. There was recently a $1M dollar bounty offered for a remote jailbreak of iOS, and the winner ended up having to use an exploit in the chrome app, so if we assume markets are efficient, then in theory it should be safe to keep at least $1M in breadwallet (if you don't use chrome).
i dont know which better between ios and android for store bitcoin or used bitcoin transaction,but if you said smartphone better and more secure than computer dekstop,i agree with that,but i have my own statment why smartphone is better,that because we always bring smartphone every where,and not bring dekstop PC everwhere