Well I have to admit that I have chosen the wrong free wallet before which made some of the coins lost. That was a freewallet.org, a mobile app wallet that has horrible service, I have lost a lot of my tokens as a bounty hunter and even their support did not answer you. Prepare your nightmare if you will sue this wallet, I suggest avoiding this wallet as much as possible. Later on, I discover Coinomi wallet which is support altcoins and bitcoin as well, but since you cannot modify the fees for bitcoin I am looking for a single bitcoin wallet that supports only bitcoin and fortunately --I found electrum that is a free good bitcoin wallet, you can use as a cold or hot wallet.