Here is a list of banks that use Zelle for free:

1. Aloha Pacific FCU
2. Alpine Bank
3. Alta Vista Credit Union
4. Altamaha Bank and Trust
5. Altana Federal Credit Union
6. Altoona First Savings Bank
7. U.S. Bank
8. Origin Bank
9. PNC Bank

Note that this is not an exhaustive list, and Zelle is available in over 2,100 banking apps. If your bank is not on this list, you can still use Zelle by downloading the Zelle app for Android and iOS.