Hi everyone, sorry life got busy and I didn't get back to you all.

I read a suggestion to log out and log back in, when I did the total displayed correctly and it says I can send the whole amount.

I don't if this was a coincidence of timing and the transaction was confirmed or an issue with the app!!

Thanks for the advice on wallet choice, I'm unfamiliar with Electrum but will look into it if it's open source and considered a better option. 

My plan was to send Bitcoin to Coinbase (self custody) wallet and ALTs to Trustwallet to diversify risk.