To make a deposit, swipe down to "Account details" window. Tap your account number to choose the account you want to fund.
Choose any LIVE account from drop-down menu. If you want to deposit Tether, tap on "+Add account button and create Tether account.
After choosing account tap "Deposit" or "+" button. 
For Bitcoin payment send funds from your wallet to the address displayed in the payment window. 
For Tether payment, you will need first choose either ERC20 (USDT issued by Tether based on Ethereum network) or Omni (based on Bitcoin network).
Send funds from your wallet to the address displayed in the payment window.