Both on the home screen and at the end of a session, Meditopia displays how many people meditated with you. This definitely helps to feel part of a community, which is is a strong usage driver.

Opal shows the number of users who are currently using the app ("28 000 users taking control") to incentivize you to use it too.

Wellnest shows the number of users who are currently using the app ("4396 people journaling") to incentivize you to use it too.