I have checked coins. ph and it is similar to
remitano.ph. i just don't know what would be the difference of these two, i only know that coins. ph and remitano.ph is an exchange site so coins.ph is not a wallet, a wallet provides private key that you own, in coins. ph you have private key but it can not be imported to other wallet which means that it is an exchange wallet.
However, they are secure because they require 2fa authentication code.
remitano.ph is expired domain and I don't see if they are both the same exchange site I heard a lot about coins.ph a few months ago announced that they added ethereum wallet because there are many clients are requested to add ethereum wallet so that they don't know any 3rd party exchange site to exchange their ethereum to bitcoin or fiat.
Coins.ph is safe and you can use it as a wallet even it is a local exchange site you can still save your bitcoin there without worrying because coins.ph is a legal business in the Philippines near ortigas center based on their recent location.