How to make Password invisibility on Kobocollect Android devices

I have forms deployed on nine 9 servers with over 150,000 users using their own phones (android devices) to capture data. Their android devices are set up using barcodes; however, users can see the server usernames and passwords after their device setup. I do not want them to see the server passwords from their mobile phones. How can this be done?

@Ola, if you do not wish to share your password with your team, feel free to configure your app as outlined in this community post discussed previously: