To send your Bitcoin Cash (BCH) out of your Bitcoin.com Wallet simply tap on "send" and enter the bitcoin address you want to send BTC to.
On the next screen make sure BCH is selected, if it shows BTC then just tap on "switch currencies" and it will swap from BTC to BCH, now just enter the amount you want to send and tap on [-->] to proceed to the send screen.
The fee will now be calculated and a page displayed showing you details of the transaction you are about to send.
Please double check that the amount and address you are about to send BCH to is all correct, if everything is correct just swipe to send. (If you have a spending password set you will have to enter that now)
Please note that because transactions on the bitcoin (BTC/BCH) network cannot be reversed it is always recommended that you copy and paste a bitcoin addresses rather than typing them, and always double check the address you pasted is correct.
Bitcoin.com does not have access to your private keys and therefore we have no control over funds in your wallet or any transactions made.