Coins.ph is the well know crypto exchange in the Philippines and you can do lots of things in that exchange, one is you can do trading fiat to bitcoin or vise versa and now they launch beta tester for ethereum and hoping it would be successful to make us able to received other coin. Also i recommend to used coins.ph as small business by selling load and as remittance center specially if you are in remote area or in subdivision.
Thank you for mentioning about the ethereum wallet but from the looks of it, it only supported android OS so far. As for business of selling load, I don't do that, I just usually load my self and my family members if I have dust amounts in my wallet.
Coins.ph is actually a nice wallet and I think most people that use it are Filipinos. It actually has a nice feauture where in you can reload your mobile phone in certain amounts and you get 5% back for each transaction. It is good for storing small amounts of bitcoin or satoshi but I wouldn't recommend storing large amounts since you got no control on the keys and you're gonna have a problem converting your bitcoin to other currencies aside from Philippine Peso.
Well everyone here knows that in a trading exchange, we don't have the control of the private keys and coins.ph is not an exception. But I have known some friends of mine holding 6 digits in coins.ph and so far nothing has happened. I myself don't have huge amount though, I immediately convert my funds to local PHP and I hold most of my btc in a wallet like Electrum and Bitcoin core for far more control of it.