thanks for your reply, but i think u didnt get me.
my problem is simple
I have some appc in binance, how should i check its balance from outside , a block explorer such as blockchain info for bitcoin , etherscan and ethplorer are ones i think.
should i check the balance of the deposit address? when i do this there is no token in it . why?
If you have them on binance, then you don't really have them on your own address. It's binance's address.
Once you have transferred them to your own address (receiving address of your wallet, which is controlled by your own private key), you can check them using an online tool such as ethplorer. Then you would be able to put your address and check the amount of tokens.
Edit. I don't really think that you can use their deposit address. They might be using it for other people's coins. Not sure about this, maybe someone can clarify this further.