Check if your phone has a "Software Update" available in the settings. Use a newer device:

Nequi developers faced a choice: keep supporting the 5% of users on ancient phones and cripple the app's innovation for everyone else, or cut the cord.

: Using unofficial or modified APKs for banking on outdated operating systems (like Android 4.4) is highly discouraged, as these versions lack critical security patches. What You Can Do

Sorry, that is a members only option