You can find your wallet SEED in the Wallet security option in the application main menu. We constantly recommend you to make a copy of your SEED, because as a light wallet we do not store users SEEDs and do not have access to users funds. Users SEEDs are located only on users devices. SEED contains 81 character - UPPERCASE letters A-Z and number 9. (Spaces here are inserted so you could write down your SEED easier)