is there any metamask alike app to be saver on mobile phone internet?
There are android browsers that allow you to install extensions, but I've never used them. I don't know if I'd install MetaMask on some random browser I download off the playstore. And, be very careful; MetaMask does not have a mobile app. Not long ago there was scam app on the play store that was imitating MetaMask. I stupidly installed it on my phone and lost a tiny bit of ethereum.
Be safe.