This is an interaction found in the Privacy.com "Create Account" screen, that gives real-time feedback to the user regarding their password strength using emoji.

When the user starts typing the desired password a small circular affordance shows up to the right of the password. This affordance provides feedback to the user in three different ways:



1) A circular progress bar that when gets filled indicates the optimal strength in terms of security.

2) Colors (red, yellow and green) that change based on the amount of progress displayed in the circular bar.

3) Four emojis that reflect an emotional response to the entered password strength.