Legit questions about Abra…

NOTE TO MODS: My apologies if this is the wrong subreddit to post this. Simply message me and I will remove. Thank you!

First question. In the Abra app, to my understanding, we can exchange Litecoin to USD, and USD to Litecoin, as many times as we want with 0 fees? What's the catch? I wants to play with 100 bucks and buy the dips and exchange to USD at the gains, repeat. I want to see how much I can earn little by little doing this.

Second question: I converted $60 worth of bitcoin to Litecoin. I want to send this Litecoin to my LoafWallet. How do I do this? I can't find this option to send Litecoin in the Abra app.

Thank you Litecoin community.