Recommend for beginners who are starting with crypto, easy and simple mobile app.
register with my link www.coinbase.com/join/halmo_7 and you get 10$ in btc for start.
Click on the Coinbase referral link then create your account and you can start using coinbase and buying bitcoin, ethereum and litecoin. The 10$ coupon code will be automatically added to your wallet once you have trade more than 100$. You can share you coinbase coupon link & coinbase voucher to invite your friends and get 10$ of free bitcoin when they activate their account.