How to make my US bank to sync with this self employed app

Hello there, hohmanalex-gmail.

You can connect your bank account using QuickBooks Self-Employed application. Here's how:

1. Go to the Profile icon if you're using iOs. For Android, go to the menu ☰ icon.
2. Select Settings and then Bank accounts.
3. Click the Plus (+) icon.
4. Search for your bank by name or URL.
5. Enter the sign-in info you use for your bank's website.
6. Then, click Sign-in.

That will do. Once connected, QuickBooks Self-Employed will automatically download bank transactions. To manage transactions, you can check this article: Create rules to speed up reviews in QuickBooks Self-Employed. 

Let me know if you have other questions. Take care always.